Request InfoYokogawa Europe BVYokogawa Europe has enhanced its line of optical test instruments with the AQ6150 and AQ6151 optical wavelength meters, which measure in the 1270- to 1650-nm range. The devices have many features in common with the company’s AQ6370 family of optical spectrum analyzers.They provide high wavelength accuracy (±1 pm for the AQ6150 and ±0.3 pm for the AQ6151) and can carry out simultaneous measurements on up to 1024 channels. 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