Optical Test Equipment

Measures the power intensity of light across different wavelengths in the electromagnetic spectrum.

  • Precision instrument for optical fiber installation and maintenance
  • Locate events or faults along a fiber

A Michelson interferometer-based optical wavelength meter with high measurement performance and excellent cost performance that meets measurement needs from optical devices to optical transmission equipment.

A modular test platform with a wide selection of modules allows optimal configuration of test solutions for optical component and network systems manufacturing.

A compact portable light source and optical power meter are crucial tools to test and verify that insertion losses are within specifications in fiber links deployed by cable TV, enterprise, service provider, carrier, Ethernet and FTTH networks.

  • Compact, lightweight portable ethernet testers
  • Improve work efficiency and quality
  • Easy to use ethernet analyzers 
  • Prevent operational errors 

 

Overview:

Lack of reliable high-speed internet access in rural regions, due to complicated logistics and the considerable costs involved to extend land-based networks to these areas, has inspired a wave of next-generation applications that will provide greater accessibility and reliability. Making use of “space laser” networks, these revolutionary solutions can relay digital traffic via low Earth orbit (LEO) satellite systems to provide low-latency, high-speed broadband services to communities typically beyond the reach of standard wireless and fiber networks.

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Optical transceivers are one of the indispensable key devices for optical communications that interconvert optical and electrical signals.

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WDM Transmission System Test

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High Speed Stray Light Reduction Function

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This paper describes a compact optical channel monitor and a delayed interferometer having free-space optical elements such as lenses or mirrors, as an application of microoptics. These devices have been developed to be built into dense wavelength division multiplexing (DWDM) transmission systems. These optics use a Gaussian beam which is emitted through single-mode optical fibers and located near the optical axis. This paper explains the optical designs of these devices based on the Gaussian beam's behavior.
SANPEI Yoshihiro*1  SUZUKI Yasuyuki*2   IEMURA Kouki*3   ASANO Junichirou*3


*1Communication and Measurement Business Headquarters, Optical Communication Measurement Development Department

*2Communication and Measurement Business Headquarters, Core Technology Development Department

*3Photonics Business Headquarters, Engineering Department IV

Overview:

We have developed the AQ6375 Optical Spectrum Analyzer  grating-based desktop optical spectrum analyzer, which can measure an optical spectrum over a wide wavelength range from 1.2 to 2.4 m with high wavelength resolution at high speed. Despite the popularity of desktop optical spectrum analyzers in the telecommunication wavelength region, a large-scale optical spectrum measurement system with a monochromator has commonly been used for measuring the long wavelength region, and so there was a need for a desktop optical spectrum analyzer for long wavelengths. Deep optical absorptions appearing in the long wavelength region around 2 m caused by CO2, NOX and H2O are attracting attention in the environmental and medical fields, and thus sensitive measuring equipment by laser absorption spectroscopy using a near infrared semiconductor laser is becoming more popular. With excellent optical spectrum measurement capabilities (high resolution and high speed), operability and maintenance performance, the AQ6375 Optical Spectrum Analyzer optical spectrum analyzer will contribute to the performance improvement and spread of near-infrared semiconductor lasers used in laser absorption spectroscopy.

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The 40-Gbit/s transport networks that will meet the communication demand of Next-Generation Networks (NGN) are starting to be deployed commercially. To meet the increasing measurement needs of the 40-Gbit/s networks and transmission equipment, we have developed the NX4000 Transport Analyzer. This can accurately and efficiently measure the transmission quality and characteristics of the networks, transmission equipment corresponding to 40-Gbit/s Synchronous Digital Hierarchy (SDH), Synchronous Optical NETwork (SONET), and Optical Transport Network (OTN). This paper describes the various measurement applications of the NX4000 Transport Analyzer.
DAIRI Kenji*1 SHIDA Hideo*1 TSUTSUMI Seiichi*1 TAKAHASHI Kenji*1

*1
Communications and Measurement Business Headquarters, Optical Communication Measurement Development Department

Overview:

Yes, the AQ7932 OTDR Emulation Viewer Software is compatible with Windows 7 32-bit and 64-bit. Note: Please make sure the correct USB driver is installed for either Windows 7 32-bit or 64-bit.

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Yes, the AQ7270 Optical Time Domain Reflectometer Viewer Software is compatible with Windows 7 32-bit and 64-bit. Note: Please make sure the correct USB driver is installed for either Windows 7 32-bit or 64-bit.

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The cursor value displays the level (dB) of the signal that is above the noise floor of the connected optical port. The noise floor is the dynamic range. This lets you know if you are approaching the maximum distance ...

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The resolution is controlled by 3 factors: Input Slit Detraction Grating  Output Slit The resolution setting controls the output slit disk. This disk has a fixed number of slits in it. Since the setting only control ...

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No, unfortunately due to the number of current fiber combinations, we do not stock optical fibers. There are many companies that specialize in optical fiber cords.

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The AQ637X Optical Spectrum Analyzer has a feature called Auto Offset that it performs every 10 minutes. What this feature does is zero out the OP amps in the OSA to ensure constant level accuracy. This feature will however, stop the OSA ...

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Please download the attached Word document for a list of compatible USB drivers for the AQ7270 and AQ7275 Optical Time Domain Reflectometer Series.

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For the AQ6373 Optical Spectrum Analyzer you can use a maximum 800 micron core fiber that must be terminated in a standard FC connector.   For the AQ6375 and AQ6370 series OSA you can use a maximum 200 micron core fiber which, ...

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  • It is possible to convert an AQ6370 Optical Spectrum Analyzer Binary file to ASCII .CSV file using the AQ6370 Viewer Software? 
  • Different AQ637X series OSA Viewer software will load specific binary file extensions.
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The AQ6370C Optical Spectrum Analyzer was developed in accordance with the IEC standard: WG4 (IEC 61280-1-3) Test procedures for general communication subsystems -Central wavelength and spectral width measurement. We cannot guarantee the RMS ...

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The remote viewer may not start if the screen resolution is too low.  Adjust the screen resolution to 1024 by 768 pixels (or larger) then restart the software.​

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If you have products currently in China that require calibration or repair, you may either return them to your local Yokogawa service center or the Yokogawa China Service & Repair Center.   Please be advised that ...

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The Cursor value on the AQ7270 Optical Time Domain Reflectometer displays the level in dB that the signal is above the noise floor of the optical port you are connected to. The noise floor is basically the Dynamic range. This lets you know if you are approaching the ...

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The AQ6373 optical spectrum analyzer performs the color analysis function as follows:1. Measure the spectrum 2. Compare the measured spectrum with “color matching functions”  as defined by the CIE Using these ...

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We are currently aware of this issue occuring on model Optical Time Domain Reflectometer AQ7270's with firmware Ver. 1.02. Please download and install the latest firmware version from the Yokogawa software drivers & firmware website: ...

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On the AQ7270 OTDR, there is an Averaging Method function with two measurement modes: High Speed or High Reflection. High SpeedThe high speed mode is used to measure all sections using a fixed attenuation setting. If ...

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Level Accuracy:Level Accuracy is a tolerance to the true value of measured value, when a standard level is measured with a standard wavelength. Level Linearity:Level Linearity is the width of error dispersion ...

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Wavelength accuracy: Wavelength accuracy is a tolerance to the true value of a measured value when the standard wavelength is measured.  Wavelength repeatability:Wavelength repeatability is the stability of ...

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Yes, the AQ7275 has a USB 1.1 port that can be used to remotely control the OTDR.

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Yes, the AQ6370 Optical Spectrum Analyzer Viewer Software is compatible with Windows 7 32-bit and 64-bit. Note: Please make sure the correct USB driver is installed for either Windows 7 32-bit or 64-bit.

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The maximum input power that the AQ6370B Optical Spectrum Analyzer can measure for pulsed light measurements is +20dBm per resolution at full span, per channel. Keep in mind that this limit is applicable to an averaged power of pulsed light, ...

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If the AQ637X series Optical Spectrum Analyzer is already running and you attempt to connect an external display, the OSA will not automatically detect the external display. The OSA will need to be re-booted before it can recognize and ...

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  • AQ637X Optical Spectrum Analyzer sanitation procedure
  • Restore settings to defaults with parameter initialization

 

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The Chopped Light mode is used: To increase measurement level sensitivity by cutting the high frequency noise To detect only the light that the LS emitted, effective for free space measurement. In free space ...

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Please download the attached application note for instructions on how to make High Bit Rate Modulated OSNR Measurement for the AQ6319 and AQ6370 series Optical Spectrum Analyzer..

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To delete all user files from the internal memory of the AQ7270 or AQ7275 Optical Time Domain Reflectometer (OTDR), follow the procedures listed below: Power up the AQ720 or AQ7275 OTDR Press the OTDR soft key Press the FILE key Press the ACTION soft ...

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If you are performing wavelength calibration using the instrument's built-in light source, the warning message is an indication that the monochromator needs to be repaired. Please visit our Contact site to locate ...

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Please clean the fiber used between the calibration output and the optical input.  

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The maximum visible light source distance that can be seen by the AQ7275 Optical Time Domain Reflectometer, through a standard SM fiber, is approximately 5 km or 3.1 miles.

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The AQ6370 OSA cannot load and re-display the data saved by an AQ6370B. However, the AQ6370 Viewer software can display the data saved by both instruments. Also please note that the AQ6370B OSA can load and re-display ...

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  • AQ6319 Optical Spectrum Analyzer
  • Warning "142 WL calibration failed"
  • Displayed when light source level is not enough at wavelength calibration or calibration cannot be executed because wavelength difference is out of calibration 
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The SU2005A-LCC universal connector is physically compatible with AQ7275, but we do not recommend it because we expect poor connection repeatability and return loss. We cannot guarantee the performance of AQ7275 when ...

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The AE5501 cannot test RFC2544. The AE5511 has an optional PC software for performing RFC2544 testing. ​

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One possible way to create a non-blocking 4x4 switch on the AQ2200 Multi Application Test System is by using multiple 2x2 switch modules. Please refer to the attached file. ​

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The analog output of the AQ2200-211 Sensor Module converts digital data to analog data in 100 us interval. It is not a direct output of an analog amplified but it is a D/A output. ​

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The following are the specifications for the AQ2200-111 1490nm DFB Module:- Center wavelength: 1490nm+/-10nm- Wavelength accuracy: 0.05nm- SMSR: 30dB or morePlease refer to the datasheet for the AQ2200-111(1310) ...

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The focal distance of the AQ6315 Optical Spectrum Analyzer monochrometer is about 280 mm.

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The meaning of "Monitor port: -13 dB" is that -13 dB corresponds to about 5% (10Log(0.05) nearly equals to -13). That is, output power is divided by an optical coupler at a ratio of 95:5, and 5% is for monitor ...

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 The WDM Analysis calculates a central wavelength by a threshold method.  A peak wavelength is acquired by a central wavelength between wavelengths, where the level is at -3 dB points on both side of the peak.

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No, although the basic shape is the same for both the AQ9335 and AQ9335C, the internal physical deisgn for the AQ9335C has been changed slightly to fit the AQ2200 series sensor modules for optimum accuracy. You will ...

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Please download and refer to the attached document for complete instructions on how to upgrade the firmware for the AQ2201/AQ2202 Frame Controller.

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Yes, the AQ2200-141/-142 FP-LD modules have a built-in isolator. The isolation is 35dB.

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Please visit our Contact site to locate and contact your local Yokogawa representative for service and repair inquiries.http://tmi.yokogawa.com/us/contact/

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In a research paper published on Nature.com, a team of researchers from the University of Virginia, Peking University, Shanxi University, and California Institute of Technology use a Yokogawa Test&Measurement Optical Spectrum Analyzer in order to achieve spectrum measurements above 1200 nm.

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In a research paper published in Optics Letters on the Optica (OPG) website, researchers from Harbin Engineering University, the University of Limerick, and the Technological University Dublin use a Yokogawa Test&Measurement AQ6370C Optical Spectrum Analyzer to test fiber components for potential use in integrated optical sources, including lasers.

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In research published on IEEE Xplore, researchers from Harbin Engineering University, the University of Limerick, and the Technological University Dublin use a Yokogawa Test&Measurement AQ6370C Optical Spectrum Analyzer to measure wavelengths when fiber is subjected to temperature changes.

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University of Central Florida researcher uses a Yokogawa Test&Measurement AQ6370B Optical Spectrum Analyzer to map the properties of a new silicon waveguide fiber.

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In this poster session research from The European Conference on Lasers and Electro-Optics 2017, researchers from Texas A&M University, Texas A&M University at Qatar, and Florida A&M University use a Yokogawa Test&Measurement AQ6376 Optical Spectrum Analyzer to detect methane in the air.

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The extreme test requirements of our research called for an OSA with extended MIR spectrum bandwidth capabilities up to 5μm, but we couldn’t find one on the market capable of measuring optical inputs at these wavelengths. Yokogawa Test&Measurement rose to the challenge and developed a new OSA model for us that would. Not only do we now have an instrument that is practically custom-made for our needs, it provides repeatable, accurate, and trusted measurement outputs and is easy to learn and use. Their equipment and ability to create a new optical measurement solution has definitely increased the overall efficiency and productivity of our research team.

— Martin Bernier, PhD, P.Eng., Full Professor, Centre de Optique, Photonique, et Laser, Université Laval

Brochures

Product Overviews

    Overview:

    From visible light to telecommunication bands and even up to applications in the 2000nm region, optical testing professionals count on the Yokogawa Test&Measurement optical testing family of products. For decades, these precision-based optical measuring instruments have met and exceeded the needs of many customers’ experimental requirements. Applicable to a range of uses in R&D, manufacturing, and academia, Yokogawa Test&Measurement OSAs, OTDRs, OWMs, modular manufacturing test systems, and more deliver quality, consistency, ease of use, and market leadership for all manner of optical test applications.

    Overview:

    Introducing the new Yokogawa Test&Measurement AQ6380 Optical Spectrum Analyzer. This new OSA includes many sought-after features including:

    • An unprecedented 5 pm wavelength resolution
    • ±5 pm wavelength accuracy
    • 1200 nm to 1650 nm wavelength range
    • 65 dB wide close-in dynamic range
    • 80 dB stray light suppression
    • Automated wavelength calibration
    • Gas purging
    • DUT-oriented interface and test apps
    • Backward-compatible remote interface
    • 10.4in intuitive touchscreen
    • Up to 20x faster measurement
    • Remote operation capabilities

How-tos

    Overview:

    For those not able to couple light into a fiber, the use of a free space light measurement jig provides a means of measuring the properties of free space light (like wavelength, power, peaks, SMSR, noise, etc.) via an optical spectrum analyzer (OSA), something not typically viable. This video demonstrates the setup and use of an example jig to measure the output of a smartphone's LiDAR light.

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    See how to use the in-built calibration on your optical spectrum analyzer in just three easy steps!

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    We are going live on YouTube to answer your questions about the Yokogawa Test&Measurement AQ6380 high performance optical spectrum analyzer. Join us to discuss how to make the most of this award-winning instrument. During this live stream we will review the resolution and dynamic range of the AQ6380 OSA along with an example application of a 1310nm signal from an AQ1000 XFP module. Whether you’ve worked with an OSA for years or curious if it is a good fit for your work or research, this live stream can help.

    Potential items for review include but are not limited to:

    • Span
    • Sweep
    • Calibration
    • Analysis
    • Cursors/Markers
    • PC-Based Remote Viewing Software
    Overview:

    We are going live on YouTube to answer your questions about the Yokogawa Test&Measurement AQ6370 Series of optical spectrum analyzers. Join us to discuss how to make the most of these versatile instruments based on your optical application needs. A few examples are fiber testing, laser/LED testing, LiDAR, optical passive components (filters), and optical transmission equipment (DWDM, CWDM). Whether you’ve worked with an OSA for years or curious if it is a good fit for your work or research, this live stream can help.

    Potential items for review include but are not limited to:

    • Span
    • Sweep
    • Calibration
    • Analysis
    • Cursors/Markers
    • PC-Based Remote Viewing Software
    Overview:

    Application Engineer Danielle walks us through how to use an optical spectrum analyzer (OSA) to measure a gas cell in just a few easy steps.

    Overview:

    The AQ7933 OTDR Emulation Software is software that can re-analyze and create reports of trace data measured on a Yokogawa OTDR.

    It is more intuitive than conventional software and has a wealth of useful features including event map and pass / fail judgment screen.

    This video will introduce the basic usage of the AQ7933 such as one-way analysis, two-way (bidirectional) analysis, and report creation.

Webinars

    Overview:

    In this webinar, Michael Kwok will discuss general techniques to measure OSNR for both traditional and modulated optical signals. The goal of the webcast is to provide test engineers with key measurement considerations for performing OSNR measurements using an Optical Spectrum Analyzer or OSA.

    Overview:

    There are countless technologies available for optical communications devices and systems validation. With so many specifics to take into consideration, it's not always easy for an engineer to determine the best networking and fiber optic measurement solution to address their measurement needs.

    Key discussions in this on-demand webinar include:

    • The what, why, and how of available options like optical spectrum analyzers, optical wavelength meters, optical power meters, variable attenuators, fixed and tunable laser sources, and more
    • How to improve the quality and value of results for both active and passive optical devices
    • Ways to streamline productivity and reduce costs while also achieving higher data transmission rates, longer-distance transmissions, immunity to EMI, lower signal loss, lower latency, enhanced security, and improved energy efficiency
    • Trends driven by applications such as AI, quantum, and inter-satellite laser communications (i.e., space lasers!)
    Overview:

    A vision of self-driving cars propels the research and development of automotive LiDAR, a vital hardware providing distance and velocity information of a vehicle’s surroundings. Some LiDAR concepts are already heading toward production for automotive ADAS and industrial markets. Two newer concepts promise the greatest potential yet: frequency-modulated continuous wave (FMCW) LiDAR and time-of-flight (TOF) flash LiDAR. However, there are engineering challenges impeding their full adoption. This webinar reviews operation principles and challenges of different LiDAR concepts, a brief discussion on the LiDAR market, and a review of critical optical components such as photodetectors and sources.

    Key takeaways include:

    • Fundamental test solution principles for challenges in demanding environments
    • Ensuring flawless and reliable operation of potentially life-critical components and systems over the entire life of the equipment
    • Techniques and results of signals from both LiDAR and facial recognition lasers from different smartphones
    • Experience how LiDAR manages (or mismanages) navigating metropolitan city streets in a truly driverless Level 4 Robotaxi
    Overview:

    Mastering the fundamentals of optical wavelength measurements and having a solid understanding of measurement principles for optical sources and devices is key to measuring with confidence. This webinar provides a thorough review of these foundational elements and concepts as well as:

    • Fiber identification and recommendations for routine care
    • Measurement techniques for different optical measurement devices
    • Example wavelength-specific applications for visible light to over 3000 nm such as telecommunications, biomedical, and atmospheric gas sensing
    • Important considerations for selecting an optical spectrum analyzer
    Overview:

    Increasing demands for greater network bandwidth and expansion of 5G wireless backhaul has driven data rates to 400G, 800G, and beyond. Starting with the physical layer of the optical network stack, precision measurement of these light speed signals is crucial.

    This webinar covers a range of alternatives used to evaluate test parameters for DWDM, OSNR, SMSR, and EDFA, and includes a discussion on interesting applications like the use of high-energy lasers across space satellite mesh networks.

    Key topics include:

    • Key test methods and technologies
    • Traditional and new applications
    • Common testing oversights
    • Measuring against industry standards
    • Ensuring network element performance and reliability

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