Optical Spectrum Analyzer

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.

The expanding field of optics related applications has created a vast variety of industries and organizations that require advanced optical spectral measurements for both R&D and manufacturing. These industries include telecommunications, consumer electronics, healthcare, life science/medical research, security, sensing, microscopy, and gas/chemical analysis, and environmental monitoring.

Yokogawa (formerly Ando) is the global leader in optical spectrum analyzers, delivering high quality, cutting edge technology with dependability, performance and flexibility for over thirty years.

  • Popular TELECOM wavelength Range of 600nm to1700nm makes this an ideal model for Telecommunications applications for both singlemode and multi-mode optics.

  • The AQ6374 Wide Range Optical Spectrum Analyzer covers wavelengths from 350 to 1750 nm including visible lights (380 to 780 nm) and the telecommunication wavelengths.

  • MWIR WAVELENGTH with internal gas purge and cut filter
    The AQ6376 is the latest version of our bench-top optical spectrum analyzer extending the wavelength coverage well beyond the NIR range of our previous models into the MWIR region from 1500 to 3400 nm.
    Popular applications include the detection of gases such as carbon oxides (COx), nitrogen oxides (NOx), and hydrocarbon gas (CxHy) for environmental studies.

  • High Performance LONG WAVELENGTH
    The AQ6375B is a bench-top optical spectrum analyzer covering the long wavelengths, 1200 to 2400 nm, with the added benefits of gas purging input ports / output ports, a built-in cut filter for high order diffracted light, and a novel double speed mode which increases the sweep speed up to 2 times compared to the standard sweep mode.

  • Dedicated SHORT wavelength Range of 350nm to1200nm allows this model to accurately measure the visible spectrum of 380nm to 780nm for bio-sciences and beyond. It is also a popular tool for measuring 1064nm Nd:YAG, DPSS Laser sources.

  • The AQ6370 Viewer is a package of PC application software for the AQ6370 series Optical Spectrum Analyzer.

Band Optical communications VIS VIS & optical
communications
exNIR MWIR
Model Number AQ6370D-12 AQ6370D-22 AQ6373B AQ6374 AQ6375B AQ6376
  //cdn.tmi.yokogawa.com/8428-AQ6370D_m.png //cdn.tmi.yokogawa.com/8428-aq6370_1_SM.jpg //cdn.tmi.yokogawa.com/8428-AQ6374_front_sm.png //cdn.tmi.yokogawa.com/8428-AQ6375_Front_sm.jpg //cdn.tmi.yokogawa.com/8428-aq6370_1_SM_2.jpg

Wavelength Range

600 - 1700 nm

350 - 1200 nm

350 - 1750 nm

1200 nm - 2400 nm

1500 nm - 3400 nm

Applications

General Purpose, Telecommunications

Bio-Photonics

General Purpose, Telecommunications

Bio-Photonics

Environmental Monitoring

Gas Sensing

Environmental Monitoring

Gas Sensing

Applicable Fiber

SM, GI50, GI62.5

SM, GI50, GI62.5
Large Core up to 800um

SM, GI50, GI62.5
Large Core up to 800um

SM, GI50, GI62.5

SM, GI50, GI62.5

Wavelength resolution setting (nm)

Min.

0.02

0.01

0.05

0.05

0.1

Max.

2

10

10

2

2

Wavelength accuracy (nm)

±0.1 (Full range)

±0.04 (1450 to 1520 nm)

±0.2 (Full range)

+/-0.05 nm (633 nm)

±0.2 (Full range)

±0.05 (633 nm)

±0.05 (1523 nm)

±0.5 (Full range)

±0.05 (1520 to 1580 nm)

±0.1 (1580 to 1620 nm)

±0.5 (Full range)

+/-0.02 nm
(1580 to 1620 nm)

+/-0.01 nm
(1580 to 1620 nm)

Maximum Sensitivity

-90 dBm
(1300 to 1620 nm)

-80 dBm
(500 to 1000 nm)

-80 dBm
(900 to 1600 nm)

-70 dBm
(1800 to 2200 nm)

-65 dBm
(1500 to 2200 nm)

Overview:

We have developed the AQ6375 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 will contribute to the performance improvement and spread of near-infrared semiconductor lasers used in laser absorption spectroscopy.

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:

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

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:

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

Overview:

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

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

This comprehensive training module covers the following topics:

  • Introduction & Product Familiarization
  • Basic OSA Principles & Theory
  • Advanced Analysis Features
  • Basic Operations

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.

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