An optical spectrum analyzer, or OSA, measures the intensity of light across various wavelengths using a dispersive element like a diffraction grating. It's crucial in telecommunications, fiber optics, and spectroscopy for characterizing light sources, testing optical components, and spectral analysis of materials.
Yokogawa (formerly Ando) is recognized as a global leader in optical spectrum analyzers, consistently providing high-quality, cutting-edge technology marked by dependability, performance, and flexibility.
Advancing Market Capabilities
The extreme test requirements of our research called for an OSA with extended MIR spectrum bandwidth capabilities up to 5pm, 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
Full Professor, Centre de Optique, Photonique, et Laser, Université Laval
AQ6380 OSA: 5 pm (0.624 GHz) high wavelength resolution, ±5 pm accuracy, 65 dB wide close-in dynamic range, 80 dB high stray light suppression
- AQ6370E Optical Spectrum Analyzer
- Popular TELECOM wavelength Range of 600nm to1700nm
- Ideal model for Telecommunications applications for single-mode and multi-mode optics
- AQ6360 optical analyzer
- Cost-effective optical spectrum analyzer
- Diffraction grating technology
- Ideal for optical device manufacturing
- The high-performance optical spectrum analyzer optimized for visible laser measurement
- 3 models line up for various applications [Standard, High resolution, Limited]
- Ideal for the lasers of industrial, bio and medical
- Wide range optical spectrum analyzer covering from visible light to communications wavelength
- Wide wavelength range: 350 to 1750 nm
- Ideal for various applications including fiber
High Performance LONG WAVELENGTH
The AQ6375E covers not only telecommunication wavelengths, but also the SWIR region which is often used for environmental sensing and medical applications.
・Lineup of 3 models [Standard, Extended and Limited]
・Covers wavelengths
1200 to 2400 nm [Standard, and Limited]
1000 to 2500 nm [Extended ]
MWIR WAVELENGTH with internal gas purge and cut filter
The AQ6376E 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.
- AQ6377 long-wavelength optical spectrum analyzer model covering the MWIR region over 5 μm
- AQ6370D optical analyzer model with highest resolution (up to 20 pm)
- Highest close-in dynamic (up to 78 dB)
- Widest measurement power (up to 110 dB)
The AQ6370 Viewer is a package of PC application software for the AQ6380, the AQ6360, and the AQ6370 series Optical Spectrum Analyzer.
Specifications and features
| aaaaav | ||
| Wavelength band / Feature / Model | ||
| VIS | High resolution |
AQ6373E |
| VIS Optical comm. |
Wide band | AQ6374E |
| Optical comm. | High performance |
AQ6370E |
| Highest performance |
AQ6380 | |
| High speed & Space saving |
AQ6360 | |
| SWIR | 2 μm | AQ6375E |
| MWIR | 3 μm | AQ6376E |
| 5 μm | AQ6377 | |
| aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa | Wavelength resolution（nm） |
Wavelength accuracy（nm） | Close-in dynamic range（dB） | Level sensitivity（dBm） | Applicable fiber |
Purge feature | Higher-order diffracted light suppression |
|||||||||||||||
| Wavelength range（nm） | Max. | Min. | VIS 0.6μm |
Optical comm. | Full range |
Resolution minimum |
Resolution 0.02nm |
Resolution 0.1nm |
VIS ≤ 1 μm |
Optical comm. 1.3-1.6μm |
SWIR ≤ 2.2 μm |
SWIR/MWIR ≥ 2.2 μm |
SM | GI | Large core |
|||||||
| 1.31μm | 1.55μm | 1.6μm | ||||||||||||||||||||
 |
10 | 0.01*1 （350 to 600 nm） 0.02 |
±0.05 aaaaaa |
aaaaaaa | aaaaaaa | aaaaaaa | ±0.2 aaaaaa |
60 （±0.5nm） |
60 （±0.5nm） |
−80 typ. （500-1000nm） −60 typ. （400-500nm） |
aaaaaaaaa | aaaaaaaaaaaaa | aaaaaaaaaaaaa | ● | ● | ● | aaaaaa | ● | ||||
 |
10 | 0.05 | ±0.05 | ±0.2 | ±0.05 | ±0.2 | ±0.2 | 60 （±1.0nm） |
−70 （400-900nm） |
−80 | ● | ● | ● | ● | ● | |||||||
 |
2 | 0.02 | ±0.1 | ±0.008 typ. | ±0.015 typ. | ±0.1 | 45 （±0.1nm） |
58 （±0.2nm） |
45 （±0.1nm） |
58 （±0.2nm） |
50 typ. （±0.2nm） |
67 typ. （±0.4nm） |
−60 （600-1000nm） |
−90 | ● | ● | ● | aaaaaa | ||||
 |
2 | 0.005 | ±0.05 | ±0.005 | ±0.01 | ±0.05 | 45 （±0.05nm） |
60 （±0.1nm） |
55 （±0.1nm） |
65 （±0.2nm） |
55 typ. （±0.2nm） |
67 typ. （±0.4nm） |
aaaaaaaaaaaaaa | −85 | ● | ● | ● | |||||
|
2 | 0.1 | ±0.1 | ±0.02 | ±0.04 | ±0.1 | 40 （±0.2nm） |
55 （±0.4nm） |
40 （±0.2nm） |
55 （±0.4nm） |
−80 | ● | ● | *2 | ||||||||
 |
2 | 0.05 | ±0.5 | ±0.05 | ±0.1 | ±0.5 | 45 （±0.4nm） |
55 （±0.8nm） |
−62 | −67 （1.5-1.8μm） −70 （1.8-2.2μm） |
−67 （2.2-2.4μm） |
● | ● | ● | ● | ● | ||||||
 |
2 | 0.1 | ±0.5 | ±0.5 | ±0.5 | 45 （±1.0nm） |
55 （±2.0nm） |
−65 （1.5-2.2μm） |
−55 （2.2-3.2μm） |
● | ● | ● | ● | ● | ||||||||
 |
5 | 0.2 | ±0.5 | 50 typ. （±5.0nm） |
−40 typ. （1.9-2.2μm） |
−50 typ. （2.2-2.9μm） −60 typ. （2.9-4.5μm） |
● | ● | ● | ● | ● | |||||||||||
aaa
●: Available
*1: High resolution model
*2: Purge feature for the AQ6360 are available on request.
*3: Wavelength extended model
Application Note
Overview:
Overview of optical communications via optical fibers including: signal conversion, optical fiber benefits, techniques like wavelength division multiplexing (WDM) for increased capacity, key components like optical amplifiers and spectrum analyzers for maintaining transmission quality.
Application Note
Overview:
Optimizing bias voltage is essential for efficient optical modulator operation, maintenance of signal quality, and meeting performance specifications required for a designated application. Proper biasing helps achieve desired modulation effects, reduces distortion, and enhances overall reliability of optical communication systems.
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Overview:
This application note introduces free space light measurement jigs for measuring the emission spectrum of a light source that propagates in free space or the optical transmission spectrum of an optical filter. It describes four types of jigs for light sources and one type for filters.
Featured
Application Note
Overview:
Optical transceivers are one of the indispensable key devices for optical communications that interconvert optical and electrical signals.
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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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Overview:
OSA Macro Program Function
The OSA Macro Program Function enables automated measurement by creating programs for entry of measurement conditions and other tasks. Users can program a sequence of measurement procedures from entry of measurement conditions (e.g., wavelength sweep width, setting resolution) to analyses, data saving, output, and others and eliminates redundant procedures on the production line. The function acts as a controller of other connected devices through the LAN or RS232C port and allows users to build an automatic measuring system without using an external PC and input measurement conditions or output measured results while programs are running.
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Overview:
To accurately measure pulsed light using an optical spectrum analyzer (OSA), it is necessary to understand the characteristics of the OSA and select the appropriate measurement method and settings.
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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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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
*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:
A new type of computer based on the theory of quantum mechanics, a quantum computer, is currently in development by researchers around the globe. The theory of quantum mechanics describes nature at the atomic and subatomic level. Quantum technology has the potential to build powerful tools that process information using the properties of atoms, photons, and electrons. These quantum computers could also address challenges of much greater complexity than what today's computers can solve, and help further advancements in science, technology, medicine, and more.
With countries spending billions of dollars, the race for who can produce the first practical, commercialized quantum computer is on. There are currently several approaches to build this sort of computer, and this all begins with creating and initializing quantum bits, also known as qubits.
Industries:
FAQ
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 Optical Spectrum Analyzer..
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:
- AQ637X Optical Spectrum Analyzer sanitation procedure
- Restore settings to defaults with parameter initialization
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:
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 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:
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.
Overview:
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 ...
Overview:
Please clean the fiber used between the calibration output and the optical input.
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:
- 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
Overview:
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, ...
Overview:
- OSA measurement
- Wavelength sweep speed (typically specified for measurement over a 100nm span)
- Sweep speed is especially important when performing many repetitive measurements
- 1x setting standard sweep speed vs. 2x sweep speed
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 ...
FAQ
Overview:
- 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.
Overview:
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, ...
Overview:
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 ...
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 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 ...
Overview:
How to get the resolution bandwidth of an older, saved trace on an OSA (optical spectrum analyzer)
:MEMory:LOAD command
SENSE:BANDWIDTH:RESOLUTION?
Overview:
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.
Overview:
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.
Research Paper
Overview:
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.
Overview:
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.
Research Paper
Overview:
University of Central Florida researcher uses a Yokogawa Test&Measurement AQ6370B Optical Spectrum Analyzer to map the properties of a new silicon waveguide fiber.
Overview:
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
- All Products Guide (27.5 MB)
Product Overviews
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
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.
How-tos
- Span
- Sweep
- Calibration
- Analysis
- Cursors/Markers
- PC-Based Remote Viewing Software
- Span
- Sweep
- Calibration
- Analysis
- Cursors/Markers
- PC-Based Remote Viewing Software
Overview:
See how to use the in-built calibration on your optical spectrum analyzer in just three easy steps!
Overview:
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:
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:
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:
Webinars
- 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!)
- Key test methods and technologies
- Traditional and new applications
- Common testing oversights
- Measuring against industry standards
- Ensuring network element performance and reliability
- 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
- 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:
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:
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:
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:
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:
Yokogawa Test & Measurement Releases AQ6373E Visible Wavelength and AQ6374E Wide Range Optical Spectrum Analyzers
Press Release
Jul 27, 2023
Yokogawa Test & Measurement Releases High Performance AQ6370E Optical Spectrum Analyzer
Press Release
Jun 18, 2023
Yokogawa Test & Measurement Releases AQ6375E and AQ6376E Near/Mid-Infrared Band Optical Spectrum Analyzers
Yokogawa launches new Optical Spectrum Analyzers covering short and mid wavelength infrared range
Press Release
Jul 27, 2022
Yokogawa AQ6380 Highest Performance Optical Spectrum Analyzer awarded highest class score by 2022 Lightwave Innovation Reviews
Yokogawa Test&Measurement, a pioneer and leader in precision optical measurement, is pleased to announce that the latest addition to its optical spectrum analyzer line, the AQ6380 Highest Performance OSA has received the highest score, 4.5/5.0, in the Lab/Production Test Equipment class by 2022 Lightwave Innovation Reviews.
Press Release
Feb 9, 2022
Yokogawa Test & Measurement Releases AQ6380 Optical Spectrum Analyzer
- Industry-leading performance in dispersive spectroscopy achieves 5 pm wavelength resolution -
Press Release
Aug 29, 2021
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