Request InfoBristol Instruments Inc.The 871 Laser Wavelength Meter measures the absolute wavelength of pulsed and CW lasers with the reliable accuracy required for the most demanding applications. What’s more, an unsurpassed measurement rate of 1 kHz enables the wavelength characterization of individual laser pulses, and the resulting time resolution of 1 ms provides the most detailed wavelength analysis of tunable lasers. The 871 Laser Wavelength Meter measures absolute wavelength to an accuracy as high as ± 175 MHz. 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