Second harmonic generating method and apparatus

Details Second harmonic generating method and apparatus Second harmonic generating method and apparatus

1994-12-30

1996-02-27

Scott, Jr., Leon

Coherent light generators

Particular temperature control

372 22, H01S 304

Patent

active

054954894

ABSTRACT:
A second harmonic generator for generating a stable harmonic includes an input mirror and an output mirror for providing a resonating section which is optically confined, second harmonic generation elements for generating a second harmonic using an externally applied pumping energy, and a casing for supporting the optical components. A temperature regulating device for mode selection is provided under the nonlinear birefringent crystalline device. A temperature correction device is provided in the peripheral surface of the casing for correcting the temperature of the casing. A controller senses the temperature of the casing and maintains the sensed temperature within a preset temperature range. Such a structure can generate a stable harmonic output even with large changes in ambient temperature. Particularly, the desired light output can be obtained within a short time.

REFERENCES:
patent: 5267252 (1993-11-01), Amano
patent: 5287367 (1994-02-01), Yanagawa
patent: 5329539 (1994-07-01), Pearson et al.
patent: 5399858 (1995-03-01), Kinoshita

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