Photonic Analysis & Sensing

As photonics continues to emerge with new and unique applications such as medical, security and materials analysis, the demand for quality and innovation is greater today than ever for precise, reliable measuring tools and sensitive equipment to support these emerging technologies. Yokogawa offers a variety of instruments and solutions with world class performance such as the AQ 6375B, AQ 6370D, and AQ 2200 to support such unique events as environmental sensing. Our optical Spectrum Analyzer has long wavelength measurement capabilities, high accuracy and resolution, built-in calibration, and is suitable for remote operations. Whether your application has you searching for viruses in cells or verifying the structural integrity of cells, Yokogawa's measuring units have the strength and power your new technologies demand. Yokogawa continues to innovate and develop new equipment to meet rigorous testing requirements for this exciting innovation.


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.


The request for lower uncertainties in power measurements are increasing,especially in the transformer industries. Their role is to ensure that the electricity is distributed in an efficient and reliable way. 

Product Overviews


    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


    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.

Looking for more information on our people, technology and solutions?

Contact Us

Precision Making