Enhance Your Optical Network Testing with Precision

For professionals who require exceptional accuracy in optical reflection measurements, the Yokogawa AQ7420 High-Resolution Reflectometer stands out as the premier solution. This advanced instrument is designed for critical communication infrastructures that demand high precision and reliability, including space satellite links, submarine fibre optic connections, datacentres, cell towers (FTTA), and silicon photonics research.

Exceptional Detection Capability

The AQ7420 Reflectometer is uniquely capable of detecting microcracks in optical connectors—flaws that can lead to unpredictable and potentially serious failures. This capability is particularly vital in environments subject to physical stress, including movement, vibration, and fluctuations in temperature. By accurately identifying the quantity and location of reflections, the AQ7420 ensures the reliability of optical networks.

Comprehensive Reflection and Loss Analysis

One of the standout features of the AQ7420 is its ability to conduct simultaneous measurements of multiple reflections and insertion loss. With an uncertainty of ±3 dB in reflection measurements and ±0.02 dB in insertion loss using the optical sensor head, this device provides comprehensive analytical capability. The AQ7420 is not just a tool for detection; it transforms optical inspection by optimizing both reflection and insertion loss measurements traditionally overlooked due to the inadequacy of older models.

Minimized Spurious Noise for Simplified Analysis

Spurious noise can lead to inaccurate analysis in conventional reflectometers, causing false appearances where no actual reflection exists. The Yokogawa AQ7420 effectively reduces spurious noise to a competitive −100 dB, eliminating ghost effects and simplifying waveform analysis significantly. Reduced spurious noise ensures data integrity and enhances the confidence with which you can interpret results.

Unprecedented Precision and Methodology

With a measurement distance of 100 mm (approximately 4 inches) and a spatial resolution of 40 μm, the AQ7420 delivers unmatched precision in its measurements. This capability is critical for ensuring pristine quality control and advanced diagnostics in high-demand optical communication environments.

Why Choose the Yokogawa AQ7420?

• Precision: Detect microscopic flaws with unparalleled accuracy.
• Comprehensive Analysis: Measure reflection and insertion loss simultaneously for full insight.
• Spurious Noise Reduction: Experience reduced noise interference for true reflection data.
• Versatile Application: Ideal for a range of industries from space to telecommunications.

Explore the transformative capabilities of the Yokogawa AQ7420 High-Resolution Reflectometer today. Investing in this device means ensuring your optical networks remain robust, reliable, and high-performing. For professionals who won’t compromise on quality or precision, the AQ7420 is an indispensable addition to any optical testing toolkit.

The post Yokogawa AQ7420 High-Resolution Reflectometer: Precision Optical Testing for Microcracks and Spurious Noise Reduction appeared first on rapid-tech.

Introducing the Yokogawa AQ6374E, your cutting-edge solution for optical spectrum analysis. Covering wavelengths from visible light to communication wavelengths, this bench-top marvel is the go-to tool for spectral measurement of a diverse range of optical devices, including laser measurements.

Unmatched Functionality and Performance

The AQ6374E stands out from the crowd with its wide measurement wavelength range—an invaluable feature for evaluating nonlinear optical phenomena of laser excitation and loss characteristics of optical fibers. Add to this a broad optical dynamic range, you have a device that can accurately measure the Side Mode Suppression Ratio (SMSR), a key indicator for various lasers used in industrial equipment, bio and medical fields, and research institutions.

State-of-the-Art Features

Designed for precision and versatility, the Yokogawa AQ6374E is equipped with high wavelength resolution performance, a purge feature for more reliable measurements, and a built-in cut filter for high order diffracted light. The standout feature? A large, multi-touch touchscreen that offers a user-friendly experience akin to operating a tablet device.

Benchmark Specifications

When it comes to specs, the Yokogawa AQ6374E is a powerhouse. It boasts a wide dynamic and level range, fast measurement speed, and an impressive wavelength range. With high wavelength resolution and accuracy, a built-in filter, and sensitivity of -80 dBm (900 – 1600 nm), this optical spectrum analyser sets the standard in optical device measurement.

Ideal for a Variety of Applications

Whether you’re involved in industrial laser equipment, AR, VR, and MR laser modules, Bio and Medical research, optical fiber, or quantum technologies, the AQ6374E is your trusted partner. It’s a hit among universities, research labs, and optical device manufacturers—and with a 12-month warranty, you can trust in the quality and durability of the Yokogawa brand.

Order the Yokogawa AQ6374E today—your all-in-one solution to optical spectrum analysis.

The post Yokogawa AQ6374E Wide Wavelength Range Optical Spectrum Analyzer 350 – 1750 nm appeared first on rapid-tech.

Welcome to the product page of the AQ6373E Optical Spectrum Analyzer, the ultimate solution for versatile applications. We have engineered this device with cutting-edge features to support the development of applied photonics equipment, such as optical active and passive devices, medical/bio equipment, home electronics, industrial machinery, and telecommunication systems.

Unrivaled Performance and Efficiency

The AQ6373E Optical Spectrum Analyzer stands out in the market for its wide span sweep with high resolution and easy accuracy maintenance. With an impressive 200,001 data sampling points, it makes your measurements more efficient. It also has built-in features to maintain high optical performance, ensuring quick-start measurements.

User-friendly Design

Navigating through the AQ6373E is a breeze, thanks to the large 10.4-inch multi-touch capacitive touchscreen. The interface is as easy as operating a tablet device, and the waveform view can be zoomed or shifted with a simple tap and drag. With four USB ports, you can easily connect external devices such as a mouse, keyboard, external hard drives, and memory sticks.

Diverse Functionalities

The AQ6373E comes with an Advanced Marker for adding markers to designated spectrums. It also offers multiple data analysis functions, including OSNR, DFB-LD, FP-LD, LED, SMSR, Color Analysis and more. Additionally, seven individual traces, a built-in macro programming, and DUT-oriented test apps enhance its functionality.

Applications and Target Market

The AQ6373E serves a wide range of applications, from optical active devices like laser diode/fiber laser to home electronics such as next-gen optical disc and LED products. It is also perfect for the industrial sector, including laser micro-machine and laser makers. Target business segments include universities and research labs, and optical device manufacturers.

Warranty

We stand behind the quality of our products. That’s why we offer a 12-month warranty period with the AQ6373E Optical Spectrum Analyzer.

Explore the AQ6373E Optical Spectrum Analyzer and experience the blend of advanced technology and user-friendly design. Revolutionize your photonics equipment development today!

Key Features

Superior Optical Performance

Experience High Resolution & Remarkable Dynamic Range

Our cutting-edge monochromator provides unparalleled wavelength resolution and dynamic range. With its sharp spectral features, you can easily separate and accurately measure spectral signals that are in close proximity.

Exceptional Sensitivity

Our technology allows for precise and rapid measurements of weak optical signals.

Variable Sensitivity Settings*

Choose from seven sensitivity settings to meet your specific test applications and measurement speed requirements.

*Excludes Limited Model

Enhanced Dynamic Mode

Our dynamic range capabilities can be augmented by minimizing the impact of stray-light, which typically occurs when the input consists of a robust optical signal.

Peak-Hold & External Trigger Mode

Our system allows for measuring the pulse peak spectrum of a pulsed light signal. This functionality is essential for transmission loop testing in telecommunication systems and for measuring low power at the initial phase of laser chip development to capture the peak power of a pulsed signal.

Versatile Free Space Input

Our free space input feature supports both multimode and single-mode fiber on the same Optical Spectrum Analyzer (OSA). With small insertion loss variation at the input connector, our OSA assures consistent measurement repeatability.

Speedy Sweep

Our advanced monochromator, combined with rapid electrical circuits and noise reduction techniques, ensures swift measurement even when assessing a steep spectrum from DFB-LD signals or a low power signal from a broadband light source.

Broad Span Sweep with Optimal Resolution

With 200,001 data sampling points, our system expands the measurement range in a single sweep while maintaining high wavelength resolution.

Easy Accuracy Maintenance

Despite external factors such as environmental changes, vibrations, and shocks, our AQ6373E can maintain peak optical performance within minutes, thereby promoting rapid start measurements.

Optical Alignment

Our system automatically aligns the optical path in the monochromator using the built-in source to preserve optimal performance.

Wavelength Calibration

Our OSA allows for automatic calibration with an external light source to guarantee wavelength accuracy.

Built-In Optical Alignment Source

For wavelength calibration, an external light source is required. In certain instances, the optical alignment and wavelength calibration function may not rectify optical performance.

Thumbnail File Preview

With our system, you can easily identify specific files among thousands in internal and external storage.

USB Ports

Our device includes four USB ports, facilitating the use of external devices such as a mouse, keyboard, external hard drives, and memory sticks.

Large Touchscreen LCD

Enjoy the ease of operation with our high-resolution 10.4-inch multi-touch capacitive touchscreen. Alter measurement conditions, perform analyses, and change the optical spectrum view with the simplicity of tablet device operation.

The post Yokogawa AQ6373E Visible Wavelength Optical Spectrum Analyzer 350 – 1200 nm appeared first on rapid-tech.

The OSA combines smart technology and functionality, such as an intuitive touchscreen, automatic wavelength calibration, and optimized sweep speed, allowing users to operate more efficiently. AQ6380 OSA’s additional features include a gas purging mechanism, fully-automated wavelength calibration, compatibility with high-resolution and high sample counts, and single-mode fiber input.

The post Yokogawa AQ6380 Highest Performance Optical Spectrum Analyzer appeared first on rapid-tech.

Lasers are commonly used for the detection of gases such as CO2, N2O and NO in environmental monitoring. This detection is achieved by identifying the wavelength absorption lines of the different gases. Howeve the “side modes” of the laser, which are difficult to detect, reduce the laser’s ability to distinguish between the different gases.

This Yokogawa AQ6377 Optical Spectrum Analyzer has been designed to overcome this difficulty in the wavelength range from 3.5 to 5 µm (mid-infrared). It has a wavelength resolution of 0.2 nm, a wavelength accuracy of ±0.5 nm, a dynamic range of up to 50 dB and a level sensitivity of up to -60 dBm.

Quantum cascade lasers (QCLs), used in particular for medical spectroscopy diagnostics, operate using a pulsed technique. The AQ6377 analyzer is capable of making measurements over the entire wavelength range and evaluating pulsed QCL signals with a low repetition rate.

Improvement in dynamic range and sensitivity has been achieved by reducing the influence of stray light in the monochromator. The integrated calibration light source takes advantage of the natural absorption properties of acetylene gas to provide a wavelength calibration signal at 0.6 picometer precision. This source also has automatic optical alignment to compensate for any drift in the optical axis caused by vibrations and shocks during transport, as well as drift due to temperature changes.

In addition, the free space optical input allows both single-mode and multi-mode MWIR fibers (up to 400 µm) to be connected to the same optical spectrum analyzer, and ensures low insertion loss. The absence of physical contact also avoids the risk of damage when the fibers are connected.

Spectral measurements can be strongly affected by the absorption of water vapor and carbon dioxide. The purge function of the AQ6377 is designed to significantly reduce the influence of these gases by continuously supplying pure purge gas (such as nitrogen) to the monochromator via dedicated connectors on the rear panel.

Key Features:

• Wavelength range: 1900 to 5500 nm 
• 5 wavelength resolution settings: 0.2 to 5 nm
  Enables the user to choose the best value according to the device/system under test.
• Wide measurable level range: −60 to +13 dBm
  Suitable to measure high power as well as low power sources used in different fields of application. Sensitivity: HIGH1-3 are only high dynamic mode.
• Wavelength accuracy: ±0.5 nm
  Easily maintained due to the built-in Calibration Function and wavelength reference source.
• Close-in dynamic range: 50 dB
• Horizontal scale also in Wave Number (cm−1)
  In addition to the commonly-used scales in wavelength (nm) and frequency (THz).

Purge Feature

Due to the high resolution and sensitivity of the AQ6377, it can actually detect the presence of water molecules in the air. The water vapor is detected in the upper Near-IR wavelength region and could overlap with or mask the spectral characteristics of the actual device under test in that particular region.

By continuously supplying a pure purge gas such as nitrogen to the monochromator through the ports on the back panel, the AQ6377 can reduce the influence of water vapor absorptions and provide more reliable and accurate measurements than ever before.

Built-in Cut Filter for High Order Diffracted Light

Due to the diffractive technology used, the monochromator in some circumstances could generate high order diffracted light, which appears at wavelengths equal to the integral multiple of input wavelengths.

By cutting incoming light below 1500 nm with the built-in filter, the AQ6377 drastically reduces the influence of high order diffracted light on the measurement. Thus, the measured data are always reliable and replicate the real signal under test.

Double Speed Mode

Increases the sweep speed up to 2 times compared to the standard sweep mode, with only a 2 dB penalty to the standard sensitivity value.

Free-Space Optical Input

The AQ6377 uses a free-space optical input structure (i.e. no fiber is mounted inside the instrument), most effective for guaranteeing high coupling efficiency, measurement repeatability, and no maintenance.

This smart solution is:

• WORRY-FREE: no internal fiber can be scratched or get dirty by inaccurate coupling of fibers
• MAINTENANCE-FREE: no internal fiber has to be cleaned
• VERSATILE: the instrument accepts both /PC and /APC connectors
• DUAL PURPOSE: the instrument accepts both Single-Mode and Multi-Mode fibers without being affected by the high insertion loss from MM-SM fibers matching

The post YOKOGAWA AQ6377 Optical Spectrum Analyzer 1900 – 5500 nm appeared first on rapid-tech.

• • Optical active devices

Laser diode/Fiber laser/Optical amplifier/Optical transceiver

• • Optical passive devices

Filter/FBG/AWG/WSS/ROADM/Optical fiber

• Optical transmission equipment (DWDM, CWDM)
• Development support of Applied photonics equipment

OSNR Measurement on DWDM System

The Yokogawa AQ6370E’s wide close-in dynamic range allows accurate OSNR measurement of DWDM transmission systems (up to 50 GHz spacing). The built-in WDM analysis function analyzes the measured waveform and shows peak wavelength, peak level and OSNR of WDM signals up to 1024 channels simultaneously.

Optical Amplifier (EDFA) Measurement

The ASE interpolation method is used to measure gain, NF, and key parameters for optical fiber amplifier evaluation. With WDM-NF analysis function, up to 1024 channels of multiplexed signals can simultaneously be tested. An ASE level for NF measurements is calculated by using a curve-fit function for each WDM channel.

Data Logging Function

The Data Logging function records analysis results such as WDM analysis (OSNR, optical signal/noise ratio), distributed feedback laser diode (DFB-LD) analysis, and multi-peak measurements at up to 10,000 points per channel with time stamps. Recorded data can be displayed in table and graphical forms. This function is useful for the long-term stability testing and temperature cycle testing of systems and devices. The optical spectrum of each measurement can also be stored for reviewing and troubleshooting.

Example of the data logging display

Advanced marker function

The Advanced Marker function adds markers to obtain the power density and the integrated power of a designated spectrum. This new feature makes it easy to get an OSNR value of the signal, whether modulated or not, directly from its spectrum.

Example of the advanced marker

Gate sampling function

The Gate Sampling function facilitates the recirculating loop testing of optical transmission systems. Using an external gate signal, the Yokogawa AQ6370E obtains the optical spectrum of the signal which is passing through a certain loop. The advantage of this approach is its speed compared with the conventional External Trigger or Sweep Enable function.

Resolution calibration function

The Resolution Calibration function is used to calibrate the noise equivalent bandwidth with an external light source. With this new feature, the measurements of power density of a broad spectrum light source will be more accurate

Various Analysis Functions

7 Indvidual Traces

• Simultaneous multi-trace display
• Calculation between traces (subtraction between traces)
• Max/Min hold

13 Spectral Analysis Functions
for popular applications, such as:

• Spectral width analysis
• WDM (OSNR) analysis
• WDM-NF (EDFA) analysis
• DFB-LD analysis
• FP-LD analysis
• LED analysis
• SMSR analysis
• Various filter analysis
• With the macro programming, multiple analyses can be combined and executed automatically.

Building Automated Test System

Macro Programming

• Build a simple auto-measurement system without an external controller.
• Easy to create test program by recording the user’s actual key strokes and parameter selections.

Fast Remote Interfaces

• GP-IB, RS-232, and Ethernet (10/100Base-T) interfaces
• Improve the testing throughput of test systems by the fast measurement, command processing, and data transfer speed.
• SCPI compatible commands and AQ6317 Emulation Mode
• LabVIEW® Driver available

Easy to Keep Accurate

Ambient condition change, vibration and shock to an optical precision product, like an optical spectrum analyzer, will effect the optical components, and eventually degrade optical performance. Using standard functions, the Yokogawa AQ6370E can maintain its high optical performance within a couple of minutes so that you can quickly start a measurement.

• • Built-in wavelength reference source

AQ6370D comes equipped with a wavelength reference source for the wavelength calibration and optical alignment.

• • Wavelength calibration function

Automatically calibrates with the built-in wavelength reference or an external light source, to ensure the wavelength accuracy.

• • Optical alignment function

Automatically aligns the optical path in the monochromator using the built-in source to maintain high performance.

Yokogawa AQ6370E Features:

World-Class Optical Performance

• Wavelength range: 600 to 1700nm
• High wavelength accuracy: ±0.01nm
• High wavelength resolution: 0.02nm
• Wide dynamic range: 78dB typ.
• Wide level range: +20 to -90dBm
• Fast measurement: 0.2 sec. (100nm span)
• Applicable to single-mode and multimode fibers

Standard and High-Performance Models

There are two models available, Standard and High performance. The High performance model provides even higher wavelength accuracy and dynamic range.

High wavelength resolution: 0.02nm

High Wavelength Accuracy: ±0.01nm

• High performance model: ±0.01nm (C band)
• Standard model: ±0.02nm (C+L band)

Ultra-High Dynamic Range: 78dB typ.

With the reduced stray-light in the monochromator, AQ6370D achieves ultra-high dynamic range of typ. 78dB.

Free Space Input

• • Multimode and single mode fiber on the same OSA.

AQ6370D’s low insertion loss for multimode fiber is also beneficial to maintain the excellent measurement efficiency.

• • Small insertion loss variation at the input

connector increases measurement repeatability.

• • No damage connecting fibers

because there is no physical contact.

• • • APC level correction

The APC level correction function corrects the level offset caused by an insertion loss of angled PC connector.

Excellent Efficiency

Fast Sweep: 0.2sec./100nm

With an advanced monochromator, faster electrical circuits, and noise reduction techniques, the Yokogawa AQ6370E achieves fast measurement speed even when measuring a steep spectrum from DFB-LD or DWDM signals, or when measuring a low power signal from a broadband light source.

Fast Remote Interface (Ethernet, GP-IB)

Wide Span Sweep yet High Resolution

The 50,001 data sampling points expands measurement range in a single sweep while keeping a high wavelength resolution. This makes your measurement easier and more efficient than conventional systems.

Easy Operation

Trace Zooming

• Change display conditions, such as center wavelength and span, by clicking and dragging the mouse.
• Enlarge your area of interest instantly and move it at will.

Mouse & Keyboard Operation

• Front panel operation proven intuitive and easy to use by our many of users.
• Even easier with a mouse.
• The keyboard helps enter labels and file names.

Easy Data Handling

• • USB Storage

USB interfaces support large-capacity removable memory and hard disk drives.

• • 512MB Internal Memory

for over 20,000 traces

• • • All-at-Once Trace Filing

All seven traces can be saved in one file at once.

The post YOKOGAWA AQ6370E Telecom Optical Spectrum Analyzer 600-1700nm appeared first on rapid-tech.

■Visible LED Test
The optical spectrum of visible LEDs used in lighting, indication, measurement and applications can be measured and analyzed.

By supporting the large core fiber input, the Yokogawa AQ6373B can efficiently get the LED light and measure its spectrum. The built-in color analysis function automatically evaluates a dominant wavelength and chromatic coordinates.

■Analysis of FP-LD (VCSEL) sources
Today FP-LD sources emitting in the visible (VIS) wavelength range are mounted into many different devices/systems used in different areas of application, such as:

• Industrial: Barcode scanners, LiDAR surface scanners;
• Consumer electronics: audio output of Hi-Fi audio systems,laser printers, computer mice;
• Automotive/home networking: with Plastic Optical Fibers cabling.

405 nm FP-LD measurement (resolution setting: 0.01 nm)

VCSEL seen through a Scanning Electron Microscope

New Functions:

Data Logging function
Records analysis results such as distributed feedback laser diode (DFB-LD) analysis and multi-peak measurements at up to 10,000 points per channel with time stamps. This function is useful for the long-term stability testing and temperature cycle testing of systems and devices.

Advanced Marker function
Adds markers to obtain the power density and the integrated power of a designated spectrum.

USB ports

• Mouse
• Keyboard
• Memory
• HDD

Easy Operation

Trace zooming

■Change display conditions, such as center wavelength and span, by clicking and dragging the mouse. ■Enlarge your area of interest instantly and  move it at will. ■No need for another measurement to modify the display conditions.

Mouse & Keyboard operation

■Front panel operation proven intuitive and easy to use by our many of users.
■Even easier with a mouse.
■The keyboard helps enter labels and file names.

Easy Data handling

■USB storage -USB 1.1 compatible interfaces support large size removable memory devices  such as Flash ROM and hard disk drives (HDD). – Easy way to carry a large number of data files. ■512MB Internal storage – Save over 20,000 data filesFile types and formats: – Trace: Binary and ASCII (CSV) – Graphic: Bitmap (BMP) and TIFF – Analysis results: Binary and ASCII (CSV) – Template: ASCII (CSV) – System setup: Binary – Macro program: Binary

Thumbnail  File Preview Easy to find a particular file out of thousands of files in internal and external storage.

Various Analysis Functions

Spectrum analysis functions 12 data analysis functions for popular applications■Built-in analysis functions: – Spectral width analysis – OSNR analysis – DFB-LD analysis – FP-LD analysis – LED analysis – SMSR analysis – Optical power analysis – Various filter analysis – Color analysis
7 individual traces ■Calculation between traces (subtraction between traces ■Max/Min hold ■Simultaneous multi-trace display

Building Automated Test System

Macro programming

Build a simple auto-measurement system ■No external PC is required. ■Easy to create test program by recording the user’s actual key strokes and parameter selections. ■Can control external equipment through the remote interfaces.

Fast remote interfaces

■GP-IB, RS-232, and Ethernet (10/100Base-T) interfaces  Easy to control with an external PC and to build an automated test system.■Improve the testing throughput of test systems by the fast measurement, command processing, and data transfer speed.

SCPI compatible The standard remote commands are compatible with SCPI, which is an ASCII text based standard code and format that conforms to IEEE-488.2.AQ6317 Emulation mode Supports the private remote commands of Yokogawa’s best selling AQ6317 series and AQ6315 for users to easily upgrade from their current automated test environment. Note. some commands may not be compatible due to changes in specifications and functions. LabVIEW® driver available

Yokogawa AQ6373B Features:

• Wavelength range: 350 to 1200nm
• Wavelength accuracy: ±0.05 nm
• Wavelength resolution: 0.02 to 10 nm and 0.01nm (400 to 470nm)
• Max safe input power: +20 dBm
• Level sensitivity: -80 dBm
• Dynamic range: ≧60dB
• Single-mode, Multimode, and Large-core fibers
• Built-in optical alignment source
• Wavelength calibration with an external reference source
• Various analysis functions including the Color analysis function for VIS

405 nm FP-LD measurement (resolution setting: 0.01 nm)

In 400-470nm range, achieves even higher resolution.

Yokogawa AQ6373B Applications:

• Optical active devices(Laser diode/Fiber laser)
• Optical passive devices(Filter/FBG/Specialty optical fiber)
• Development support of Applied photonics equipment

• Medical/Bio: Laser therapy, DNA sequencing, Microscope
• Industrial: Laser micro-machine, laser maker
• Home Electronics: Laser projector, Next-gen optical disc, LED products
• Measurement Sensing: LIDAR, Interferometer
• Telecom: Plastic Optical fiber (POF) communication

World-class optical performance

High Resolution & High Dynamic Range
The advanced monochromator of the Yokogawa AQ6373B achieves high wavelength resolution and high close-in dynamic range. With the sharper spectral characteristics of the monochromator, spectral signals in close proximity can be separated clearly and measured accurately.

High Sensitivity
Weak optical signals can be measured accurately and quickly.

Pulsed Light Measurement

Free Space Input

■Multimode and single mode fiber on the same OSA ■Small insertion loss variation at the input connector increases measurement repeatability. ■No damage connecting fibers because there is no physical contact. ■Supports SM, GI (50/125 μm, 62.5/125 μm) and large core fiber up to 800 μm.

Optical input structure (note. AQ6373B uses a fixed connector)

Excellent efficiency

Fast Sweep
With an advanced monochromator, faster electrical circuits, and noise reduction techniques, the Yokogawa AQ6373B achieves fast measurement speed even when measuring a steep spectrum from DFB-LD signals, or when measuring a low power signal from a broadband light source.

Wide Span Sweep yet High Resolution
The 50,001 data sampling points expands measurement range in a single sweep while keeping a high wavelength resolution. This makes your measurements easier and more efficient than conventional systems that use a low number of sampling points and require multiple partial measurements to cover the complete wavelength range.

Easy to Keep Accurate

Ambient condition change, vibration and shock to an optical precision product, like an optical spectrum analyzer, will effect the optical components and eventually degrade optical performance.
Using standard functions, the Yokogawa AQ6373B can maintain its high optical performance within a couple of minutes so that you can quickly start a measurement.

Optical alignment function
 Automatically aligns the optical path in the monochromator using the built-in source to maintain high performance.
Wavelength calibration function
 Automatically calibrates the spectrum analyzer with an external light source, to ensure the wavelength accuracy.

Note. There are cases that the optical alignment and wavelength calibration function cannot correct optical performance.
Periodical calibration is also required.

The post YOKOGAWA AQ6373B Visible Wavelength Optical Spectrum Analyzer 350-1200nm appeared first on rapid-tech.

The software has pre-installed analysis functions for the most common optoelectronic (passive and active) devices. The automatic calculation of the major parameters of the device under test will contribute to its fast characterization.

Moreover, the AQ6375E has the capability to be programmed to perform automatic measurements while controlling other lab equipment.

New Functions

Data logging function 

Records analysis results such as distributed feedback laser diode (DFB-LD) analysis data and multi-peak measurements at up to 10,000 points per channel with time stamps.

Smoothing function

Reduces the noise on the measured spectrum.

Built-in analysis functions to increase your testing efficiency

You can display the spectrum width and center wavelength using the following 4 types of calculation:

• THRESH method
• ENVELOPE method
• RMS method
• PEAK RMS method

Notch Width Measurement

With this function it is possible to measure pass bandwidth / notch width from the measured waveform of a filter with V-type or U-type wavelength characteristics.

Light Source Analysis

Light source parameters can be analyzed from the measured waveform of each type of light source among DFB-LD, FP-LD and LED.PMD Measurement

It is possible to measure the Polarization Mode Dispersion (PMD) of a DUT (such as an optical fiber) by using the instrument in combination with an Analyzer, Polarization Controller, Polarizer, and an Amplified Spontaneous Emission (ASE) light source, High-output LED light source, or other wideband light source.

WDM Analysis

With this function it is easy to analyze WDM transmission signals. You can also measure OSNR of a DWDM transmission system with 50 GHz spacing. Measurements of WDM signal wavelength, level, wavelength interval, and OSNR can be made collectively on up to 1024 channels, and the analysis results can be displayed in a data table.

Optical Amp Analysis

Gain and Noise figure measurements can be made on signal light waveforms going into optical amplifiers, as well as light leaving the optical amplifiers.

Optical Filter Characteristics Measurement

Optical filter characteristics can be measured from the measured waveforms of the light, from source, going into optical filters, as well as from the measured waveforms of light being output from optical filters. Analysis can be performed not only on optical filters with one mode, but also multimode filters (e.g WDM Filters).

Measurement of Level Fluctuations in Single-Wavelength Light

This function is used to measure changes over time in the level of a specific wavelength level. The sweep width is set to 0 nm, and measurement of the single-wavelength light is taken. The horizontal axis is the time axes. It is useful for purposes such as optical axis alignment when a light source is input to an optical fiber.

Template Analysis

The template function compares preset reference data (template data) with a measured waveform. In addition, if a function for displaying the target spectrum (target line) on the measurement screen is used, the target spectrum can be referenced while adjusting the optical axis of an optical device.

Go/No Go Judgment

The Go/No Go test function compares the active trace waveform against reference data (template data) preset by the user, and performs a test on the measured waveform (Go/No Go test).
This function can be used effectively in situations such as pass/fail tests on production lines.

Analysis between Line Markers / in the Zoom Area

The instruments perform the analysis of the signal contained into boundaries selected by means of line markers or zoomed area.

Building Automated Test Systems

REMOTE OPERATION

The AQ6375E is equipped with GP-IB, RS-232, and Ethernet (10/100Base-T) interfaces, which can be used for remote access and control from an external PC to build automated test systems. Built-in Macro Programming function is also available to implement simple auto test programs on the unit it self.

COMPATIBLE WITH SCPI

The standard remote commands of the AQ6375E are compatible with SCPI, which is an ASCII text based standard code and format conforming to IEEE-488.2.

AQ6317 EMULATION MODE The AQ6375E supports proprietary remote programming codes of Yokogawa’s best selling AQ6317 series for users to easily upgrade from their current automated test environment. MACRO PROGRAMMING Macro programming enables user to easily create test procedures by recording the user’s actual key strokes and parameter selections. An external PC is not required because the macro program can also control external equipment through the remote interfaces.

LabVIEW® DRIVER available

YOKOGAWA AQ6375E Key feature summary:

• Long wavelength range: 1000 to 2000 nm
• Gas purging ports to reduce water vapor effects
• Built-In cut filter for high order diffracted light
• Double Speed Mode to further enhance fast measurement speed
• High sensitivity down to -70 dBm
• High resolution to 0.05 nm
• Wide close-in dynamic range (55dB)
• Fast auto-calibration
• Free space optical input for maximum flexibility, low maintenance, and high reliability
• Applicable to single-mode and multimode fibers
• Excellent performance for environmental gas sensing Laser Spectroscopy
• Indispensable tool for R&D and manufacturing of optical devices in the wavelength range from telecom band to 2.4μm

New Features

Purge feature

Due to the high resolution and sensitivity of the YOKOGAWA AQ6375E, it can actually detect the presence of water molecules in the air. The water vapor is detected in the upper Near-IR wavelength region and could overlap with or mask the spectral characteristics of the actual device under test in that particular region.

By continuously supplying a pure purge gas such as nitrogen to the monochromator through the ports on the back panel, the AQ6375E can reduce the influence of water vapor absorptions and provide more reliable and accurate measurements than ever before.

Built-in cut filter for high order diffracted light

Due to the diffractive technology used, the monochromator in some circumstances could generate high order diffracted light, which appears at wavelengths equal to the integral multiple of input wavelengths.

By cutting incoming light below 1150 nm with the built-in filter, the AQ6375E drastically reduces the influence of high order diffracted light on the measurement. Thus, the measured data are always reliable and replicate the real signal under test.

Double speed mode

Increases the sweep speed up to 2 times compared to the standard sweep mode, with only a 2 dB penalty to the standard sensitivity value.

Long Wavelength Range: from 1000nm to 2500nm

The YOKOGAWA AQ6375E covers not only the wavelength span used in communications, but also the 2µm region which is used for environmental sensing, medical, biology and industrial applications.

High Sensitivity: down to -70dBm

The AQ6375E can measure optical power from +20dBm down to -70dBm thanks to its high-dynamic and very low noise components and circuits used for photo detection. This enables precise measurements of both high power and low power sources.

Measurement sensitivity can be chosen among 7 values according to the measurement speed required by the specific test to be performed.

High Resolution & Wide Dynamic Range

The YOKOGAWA AQ6375E uses a double-pass monochromator structure to achieve high wavelength resolution (0.05 nm) and wide close-in dynamic range (55 dB). Thus, closely allocated signals and noise can be separately measured.

Measured HeNe Laser (1523 nm), Close-in Dynamic range: @ peak±0.8 nm

High speed Measurement

GREATER EFFICIENCY 

High Speed Sweep

With a proprietary sweep technique the AQ6375E achieves a much faster sweep speed than conventional measurement systems, which use a monochromator. Max. sweep time is only 0.5 sec. for 100 nm span.

Fast command processing and data transfer

Applying a fast microprocessor, the AQ6375E achieves very fast command processing speed and Ethernet interface provides up to 100 times faster data transfer speed than GP-IB.

Fast auto-calibration

Free-Space Optical Input

The AQ6375E uses a free-space optical input structure, i.e. no fiber is mounted inside the instrument.

This smart solution is:

• WORRY-FREE, as no internal fiber can be scratched or get dirty
• MAINTENANCE-FREE, as no internal fiber has to be cleaned
• VERSATILE, as the instrument accepts both /PC and /APC connectors
• DUAL PURPOSE, as the instrument accepts both Single-Mode and Multi-Mode fibers without being affected by the high insertion loss from MM-SM fibers matching

The post YOKOGAWA AQ6375E Long Wavelength Optical Spectrum Analyzer 1000 – 2500 nm appeared first on rapid-tech.

• Long wavelength range: 1500 to 3400 nm
• Gas purging ports to reduce water vapor effects
• Built-In cut filter for high order diffracted light
• Double Speed Mode to further enhance fast measurement speed
• High sensitivity down to -65 dBm
• High resolution to 0.10 nm
• Wide close-in dynamic range (55dB)
• Fast auto-calibration
• Free space optical input for maximum flexibility, low maintenance, and high reliability
• Applicable to single-mode and multimode fibers
• Excellent performance for environmental gas sensing Laser Spectroscopy
• Indispensable tool for R&D and manufacturing of optical devices in the wavelength range from telecom band to 3.4μm

YOKOGAWA AQ6376 New Features:

Purge feature

Due to the high resolution and sensitivity of the YOKOGAWA AQ6376, it can actually detect the presence of water molecules in the air. The water vapor is detected in the upper Near-IR wavelength region and could overlap with or mask the spectral characteristics of the actual device under test in that particular region.

By continuously supplying a pure purge gas such as nitrogen to the monochromator through the ports on the back panel, the AQ6376 can reduce the influence of water vapor absorptions and provide more reliable and accurate measurements than ever before.

Built-in cut filter for high order diffracted light

Due to the diffractive technology used, the monochromator in some circumstances could generate high order diffracted light, which appears at wavelengths equal to the integral multiple of input wavelengths.

By cutting incoming light below 1500 nm with the built-in filter, the YOKOGAWA AQ6376 drastically reduces the influence of high order diffracted light on the measurement. Thus, the measured data are always reliable and replicate the real signal under test.

Double speed mode

Increases the sweep speed up to 2 times compared to the standard sweep mode, with only a 2 dB penalty to the standard sensitivity value.

Long Wavelength Range: from 1500nm to 3400nm

The YOKOGAWA AQ6376 covers not only the wavelength span used in communications, but also the 3µm region which is used for environmental sensing, medical, biology and industrial applications.

High Sensitivity: down to -65dBm

The YOKOGAWA AQ6376 can measure optical power from +13dBm down to -65dBm thanks to its high-dynamic and very low noise components and circuits used for photo detection. This enables precise measurements of both high power and low power sources.

Measurement sensitivity can be chosen among 7 values according to the measurement speed required by the specific test to be performed.

High Resolution & Wide Dynamic Range

The AQ6376 uses a double-pass monochromator structure to achieve high wavelength resolution (0.10 nm) and wide close-in dynamic range (55 dB). Thus, closely allocated signals and noise can be separately measured.

High speed Measurement

GREATER EFFICIENCY 

High Speed Sweep

With a proprietary sweep technique the AQ6376 achieves a much faster sweep speed than conventional measurement systems, which use a monochromator. Max. sweep time is only 0.5 sec. for 100 nm span.

Fast command processing and data transfer

Applying a fast microprocessor, the AQ6376 achieves very fast command processing speed and Ethernet interface provides up to 100 times faster data transfer speed than GP-IB.

Fast auto-calibration

Free-Space Optical Input

The AQ6376 uses a free-space optical input structure, i.e. no fiber is mounted inside the instrument.

This smart solution is:

• WORRY-FREE, as no internal fiber can be scratched or get dirty
• MAINTENANCE-FREE, as no internal fiber has to be cleaned
• VERSATILE, as the instrument accepts both /PC and /APC connectors
• DUAL PURPOSE, as the instrument accepts both Single-Mode and Multi-Mode fibers without being affected by the high insertion loss from MM-SM fibers matching

The post YOKOGAWA AQ6376 Three Micron Optical Spectrum Analyzer 1500 – 3400 nm appeared first on rapid-tech.

Active component test

Characterization of laser sources

Today various light sources such as DFB-LD, FP-LD and VCSEL emitting in the visible light to mid-infrared wavelength region are mounted into many different devices/systems used in different areas of application, such as:

• Telecommunication: with glass fiber or plastic fiber
• Industrial: Barcode scanners, LiDAR surface scanners
• Consumer electronics: audio output of Hi-Fi audio systems, laser printers, computer mice

YOKOGAWA AQ6374 FUNCTIONS:

16 data analysis functions

• WDM (OSNR) analysis
• Optical Fiber Amplifier analysis
• DFB-LD analysis
• FP-LD (VCSEL) analysis
• LED analysis
• Spectral Width analysis
• Notch Width analysis
• SMSR analysis
• PMD analysis
• Optical Power analysis
• Color analysis
• Optical Filter analysis (PK, BTM, WDM-PK, WDM-BTM)
• Go/No-Go Judgment

Purge feature

Due to the high resolution and sensitivity of the AQ6374, it can actually detect the presence of water molecules in the air. The water vapor is detected in the upper Near-IR wavelength region and could overlap with or mask the spectral characteristics of the actual device under test in that particular region. By continuously supplying a pure purge gas such as nitrogen to the monochromator through the ports on the back panel, the AQ6374 can reduce the influence of water vapor absorptions and provide more reliable and accurate measurements than ever before.

Built-in cut filter for high order diffracted light

Due to the diffractive technology used, the monochromator in some circumstances could generate high order diffracted light which appears at wavelengths equal to the integral multiple of input wavelengths.

The built-in calibration source

Ambient temperature change, vibrations and shock affect the measurement accuracy of high precision products like optical spectrum analyzers. We want our OSAs to be able to deliver always the precise measurements they were designed for, therefore our instruments are equipped with a light source for calibration.

Calibration process is fully automatic and takes only 2 minutes to complete. It includes:

• The Optical Alignment function, which automatically aligns the optical path in the monochromator to assure the level accuracy.
• The Wavelength Calibration function, which automatically calibrates the spectrum analyzer with the reference source to ensure the wavelength accuracy.

Data logging function

Records analysis results such as WDM analysis (OSNR, optical signal/noise ratio), distributed feedback laser diode (DFB-LD) analysis, and multi-peak measurements at up to 10000 points per channel with time stamps. Recorded data can be displayed in table and graphical forms. This function is useful for the long-term stability testing and temperature cycle testing of systems and devices. The optical spectrum of each measurement can also be stored for reviewing and troubleshooting.

Advanced marker function

Adds markers to obtain the power spectral density and the integrated power of a designated spectrum. This new feature makes it easy to get an OSNR value of the signal, whether modulated or not, directly from its spectrum.

Building automated test systems

Any model of the AQ6370 Series, thanks to the built-in Macro Programming Function, can perform automatic measurements and control external equipment through its remote interfaces.

GP-IB, RS-232 and Ethernet ports are available to have the instrument remotely controlled by a PC and to transfer standard SCPI-compatible or proprietary AQ6317- compatible commands. Also LabVIEW® drivers are available.

The AQ6370 Viewer

Real-time remote control

The AQ6370 Viewer is a software package, which replicates The OSA’s screen on a PC and enables:

• Remote control and operation of the instrument
• Display, analyze and transfer the data acquired by the instrument on your remote PC

The AQ6370 Viewer is appreciated especially by:

• Production Managers, who can command the instrument and collect its measurement results from their office without physically going to the actual production line.
• Service Engineers, who can help their customers or colleagues by setting the instrument in the proper way, tuning it on the device/system they want to test.

Smoothing function

Reduces the noise on the measured spectrum.

The post YOKOGAWA AQ6374 Wide Range Optical Spectrum Analyzer 350 – 1750 nm appeared first on rapid-tech.