Request InfoBristol Instruments Inc.The 721 series laser spectrum analyzers from Bristol Instruments Inc. combine Michelson interferometer-based technology with digital processing to perform wavelength and spectral characterization of continuous-wave and high-repetition-rate pulsed lasers that operate from 1.3 to 11 μm. Absolute laser wavelength is measured to an accuracy of ±0.2 parts per million (±0.001 nm at 5 μm), and the spectrum is determined to 2-GHz resolution. 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