Circuit for driving second harmonic generator

Details Circuit for driving second harmonic generator Circuit for driving second harmonic generator

1995-08-18

1997-02-18

Healy, Brian

Coherent light generators

Particular component circuitry

Optical pumping

372 29, 372 34, H01S 300

Patent

active

056047606

ABSTRACT:
A circuit is provided for driving a second harmonic generator, wherein an unstable optical output caused by a non-linear optical element is stabilized. The optical output value produced by the second harmonic generator is integrated using an integration coefficient selected using a switch according to the level of the optical output value. The integration coefficient may be defined using a first integration coefficient setting resistor connected in parallel with a series connection including a second integration coefficient setting resistor and a negative-polarity-controlled switch.

REFERENCES:
patent: 4577320 (1986-03-01), Yoshikawa et al.

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