Request InfoBristol Instruments Inc.Bristol Instruments Inc. has introduced a wavelength meter for use with tunable quantum cascade lasers. The new 621B-MIR measures absolute wavelength of CW lasers that operate from 4 to 11 μm. Reliable accuracy of ±1 part per million is achieved because of continuous calibration with a built-in wavelength standard. Now researchers working at mid-IR wavelengths for high-resolution spectroscopy, photochemistry or optical sensing applications can achieve more meaningful experimental results with accurate laser wavelength information.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra July 2023 IssueMetrology SystemThe MESO™ metrology solution from Imagine Optic is designed for at-wavelength testing of flat surfaces. 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