Request InfoAnritsu Co.Anritsu Co. has announced the release of an automatic calibration unit for its ME7890A optical amplifier test system. The unit calibrates the system while it is connected to a device under test, improving the overall accuracy to 0.1 dB, suitable for WDM and dense WDM research and development, manufacturing and inspection. The calibration unit is a 5 x 5 switching matrix, which allows one input to function with five outputs, all with different insertion losses. The ME7890A has a range of 1530 to 1570 nm and measures channel space of 50 GHz.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra January 2023 IssueLaser Cutting HeadsThe BIMO-FSC3 line of laser cutting heads from Coherent Corp. features high-power ratings for materials processing. 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