Electronic tuning system continually adjusts frequency of tunable diode laser to compensate for Doppler shift caused by motion of transmitter or receiver containing laser. Doppler-shift-compensating system intended primarily for use in transmitter or receiver of laser remote-sensing or communication system to keep frequency of received signal within frequency range of narrow-band-pass filter. By use of narrow-band filter (instead of wide-band filter required in absence of Doppler compensation), signal-to-noise ratio of laser system increased. Thus, less-powerful transmitter usable.


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    Title :

    Compensating For Doppler Shift In Laser Instrumentation


    Contributors:

    Published in:

    Publication date :

    1990-08-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English





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