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Optical Test Equipment

Optical test equipment or optical measuring instruments are used to measure and characterize the physical properties of light. The insatiable demand for higher capacity in communication networks has fueled the need for highly precise optical test solutions. In addition, precision optical measurements are essential to optical research applications for biophotonics, environmental sensing, and consumer products.

R&D engineers, academic researchers, manufacturing engineers, and field service personnel depend on precision optical test equipment to ensure design and performance specifications, production quality, and network health. For more than thirty years, Yokogawa (formerly Ando) has delivered quality, consistency, ease of use, and market leadership for optical test applications.

  • An Optical Spectrum Analyzer (or OSA) is a precision instrument designed to measure and display the distribution of power of an optical source over a specified wavelength span. An OSA trace displays power in the vertical scale and the wavelength in the horizontal scale.

  • An optical time domain reflectometer (OTDR) is a precision instrument used to locate events or faults along a fiber link, typically within an optical communications network.

  • An Optical Wavelength Meter measures the peak wavelength(s) of an optical signal with extreme picometer and sub picometer accuracy.

  • 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.

Overview:

Application Xplorer is a Electronic Newsletter that is sent out bi-monthly to inform our customers of our latest news and product applications.

Overview:

After a disastrous 2009, the large publicly held test companies enjoyed booming business in 2010.

Overview:

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


*1
Communication 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:
Yes, the AQ7932 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.
Overview:
Yes, the AQ7270 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.
Overview:
The AQ6370C OSA 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 ...
Overview:
It is possible to convert an AQ6370 Binary file to ASCII .CSV file using the AQ6370 Viewer Software. Please keep in mind there are different AQ637X series OSA Viewer software will load specific binary file extensions.
Overview:
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.​
Overview:
For the AQ6373 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, ...
Overview:
The AQ637X OSA 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 ...
Overview:
Please download the attached Word document for a list of compatible USB drivers for the AQ7270 and AQ7275 series OTDR.
Overview:
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 ...
Overview:
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 ...
Overview:
Yes, the AQ7275 has a USB 1.1 port that can be used to remotely control the OTDR.
Overview:
Yes, the AQ6370 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.
Overview:
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 ...
Overview:
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 ...
Overview:
We are currently aware of this issue occuring on model AQ7270's with firmware Ver. 1.02. Please download and install the latest firmware version from the Yokogawa software drivers & firmware website: ...
Overview:
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 ...
Overview:
The Cursor value 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 ...
Overview:
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.
Overview:
Please download the attached application note for instructions on how to make High Bit Rate Modulated OSNR Measurement for the AQ6319 and AQ6370 series OSAs.
Overview:
To delete all user files from the internal memory of the AQ7270 or AQ7275 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 ...
Overview:
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 ...
Overview:
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 ...
Overview:
You can restore all settings for the AQ637X series OSAs to their factor defaults by performing a parameter initialization. This will clear all current parameter setting values and data as well as alignment adjustment ...
Overview:
The maximum input power that the AQ6370B 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, ...
Overview:
If the AQ637X series OSA 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 ...
Overview:
Please clean the fiber used between the calibration output and the optical input.  
Overview:
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 ...
Overview:
Yes, the AQ7270 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.
Overview:
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 ...
Overview:
The maximum visible light source distance that can be seen by the AQ7275, through a standard SM fiber, is approximately 5 km or 3.1 miles.
Overview:
Yes, the AQ7932 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.
Overview:
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 ...
Overview:
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 ...
Overview:
The warning "142 WL calibration failed" is displayed when a level of light source is not enough at wavelength calibration or calibration cannot be executed because wavelength difference is out of calibration ...
Overview:
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 ...
Overview:
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 ...
Overview:
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.
Overview:
The AQ637X OSA 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 ...
Overview:
Please download the attached Word document for a list of compatible USB drivers for the AQ7270 and AQ7275 series OTDR.
Overview:
For the AQ6373 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, ...
Overview:
It is possible to convert an AQ6370 Binary file to ASCII .CSV file using the AQ6370 Viewer Software. Please keep in mind there are different AQ637X series OSA Viewer software will load specific binary file extensions.
Overview:
The AQ6370C OSA 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 ...
Overview:
The AE5501 cannot test RFC2544. The AE5511 has an optional PC software for performing RFC2544 testing. ​
Overview:
One possible way to create a non-blocking 4x4 switch on the AQ2200, is by using multiple 2x2 switch modules. Please refer to the attached file. ​
Overview:
The analog output of the AQ2200-211 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. ​
Overview:
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) ...
Overview:
The focal distance of the AQ6315 monochrometer is about 280 mm.
Overview:
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 ...
Overview:
 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.
Overview:
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 ...
Overview:
Please download and refer to the attached document for complete instructions on how to upgrade the firmware for the AQ2201/AQ2202 Frame Controller.
Overview:
Yes, the AQ2200-141/-142 FP-LD modules have a built-in isolator. The isolation is 35dB.
Overview:
Please visit our Contact site to locate and contact your local Yokogawa representative for service and repair inquiries.http://tmi.yokogawa.com/us/contact/
Overview:
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.​
Overview:
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 ...
Overview:
The Cursor value 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 ...
Overview:
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 ...
Overview:
We are currently aware of this issue occuring on model AQ7270's with firmware Ver. 1.02. Please download and install the latest firmware version from the Yokogawa software drivers & firmware website: ...
Overview:
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 ...
Overview:
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 ...
Overview:
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 ...
Overview:
Yes, the AQ7275 has a USB 1.1 port that can be used to remotely control the OTDR.
Overview:
Yes, the AQ6370 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.
Overview:
The maximum input power that the AQ6370B 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, ...
Overview:
If the AQ637X series OSA 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 ...
Overview:
You can restore all settings for the AQ637X series OSAs to their factor defaults by performing a parameter initialization. This will clear all current parameter setting values and data as well as alignment adjustment ...
Overview:
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 ...
Overview:
Please download the attached application note for instructions on how to make High Bit Rate Modulated OSNR Measurement for the AQ6319 and AQ6370 series OSAs.
Overview:
To delete all user files from the internal memory of the AQ7270 or AQ7275 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 ...
Overview:
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 ...
Overview:
Please clean the fiber used between the calibration output and the optical input.  
Overview:
The maximum visible light source distance that can be seen by the AQ7275, through a standard SM fiber, is approximately 5 km or 3.1 miles.
Overview:
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 ...
Overview:
The warning "142 WL calibration failed" is displayed when a level of light source is not enough at wavelength calibration or calibration cannot be executed because wavelength difference is out of calibration ...
Overview:
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 ...

Webinars

    Overview:

    View our webinar on the many uses of an Optical Spectrum Analyzer. This 45 minute presentation covers the basics of light, the design, measurement, and test applications of an OSA.

    Overview:

    Learn with Product Manager, Michael Kwok, about crucial fundamental concepts for optical wavelength measurements in this 45 minute session. We will discuss the principles behind optical wavelength measurements of optical sources and devices, as well as basic tips and tricks so you can measure with confidence.

    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.

Product Overviews

    Overview:

    The AQ6370 is Yokogawa's high speed and high performance Optical Spectrum Analyzer for characterization of optical communications system and optical components. Thirteen built-in analysis functions and seven trace calculations for popular applications can be utilized with a simple function key. Yokogawa continues to provide you quality products that simplify your business practices.

    Overview:

    The AQ6375 is the first bench-top optical spectrum analyzer covering the long wavelengths over 2 ?m.
    It is designed for researchers and engineers who have been struggling with inadequate test equipment to measure in these long wavelength ranges. The AQ6375 achieves high speed measurements with high accuracy, resolution and sensitivity, even while providing full analysis features. Troublesome calibration steps and the development of external analysis software is no longer required.

    Overview:

    The AQ7270 OTDR maximizes the total working time during on-site tests as the time to power up the device, make measurements, and analyze and store the measurement results are significantly reduced. The measurement results can easily be transmitted to computers using the USB interface or the Ethernet. The analysis software (optional), helps with preparation of computer-generated reports.

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