Wide-band Measurement Technology for the AQ6373B Optical Spectrum Analyzer

In line with the advancement of optical communications technology, Yokogawa’s technology for optical spectrum measurement has also evolved, centering on spectroscopy using a monochromator. Its wavelength coverage has expanded beyond optical communication bands, ranging from 350 to 2,400 nm. Among Yokogawa’s solutions, the AQ6373B covers from 350 to 1,200 nm and accurately measures the characteristics of short-wavelength lasers, LEDs and optical filters. This paper describes the wide-band measurement technology implemented in the AQ6373B.