Process and system for controlling the efficiency of an...

Details Process and system for controlling the efficiency of an... Process and system for controlling the efficiency of an...

H - Electricity

04

B

325/1, 325/2

H04B 10/155 (2006.01) H01S 5/0683 (2006.01) H03L 5/00 (2006.01) H01L 33/00 (2006.01)

Patent

CA 1124329

ABSTRACT A system for stabilizing operation of a device such as a lazer providing at its output a signal in the form of electromagnetic radiation pulse modulated to form a series of randomly alternating high and low level pulses at predetermined recurrence frequency. A portion of the output of the device is extracted, bandpass filtered and synchronously demodulated to provide a negative feedback signal for controlling the amplitude of the high level pulses. Filtering, demodulation and integration are per- formed on the extracted output signal so as to obtain a feedback signal proportional to the peak-to-peak power of the signal.

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