Coherent light generators – Particular beam control device – Optical output stabilization
Patent
1995-11-09
1998-02-10
Bovernick, Rodney B.
Coherent light generators
Particular beam control device
Optical output stabilization
372 26, 372 38, H01S 313
Patent
active
057177082
ABSTRACT:
A method of frequency stabilizing a semiconductor laser. The method includes the steps of detecting a heterodyne beat note by optically mixing a leakage field of an optical resonator and a frequency modulated output of the semiconductor laser and detecting a phase of the heterodyne beat note by mixing the heterodyne beat note in quadrature with a radio frequency reference signal. The method further includes the steps of filtering the detected phase of the heterodyne beat note, scaling the filtered detected phase of the heterodyne beat note, and modulating the semiconductor laser with the scaled detected phase of the heterodyne beat note and the radio frequency modulation reference signal.
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Bovernick Rodney B.
Wise Robert E.
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