Second harmonic generation method and apparatus

Details Second harmonic generation method and apparatus Second harmonic generation method and apparatus

1995-08-29

1996-11-19

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Nonlinear device

372 34, 359328, H01S 310

Patent

active

055770592

ABSTRACT:
A second harmonic generation method and apparatus is capable of stabilizing an output. The apparatus provides a first beam splitter on the proceeding path of a second harmonic output, and other beam splitters on the proceeding path of the reflecting beam of the second harmonic and that of the transmitted beam. A second and third beam splitters are arranged on the proceeding paths of the second harmonic output and the beam separated from the second harmonic output to satisfy ##EQU1## where K is a constant, R.sub..parallel. is reflectivity with respect to p-polarization parallel to the incident surface of the first and second beam splitter, and R.sub..perp. is reflectivity with respect to s-polarization perpendicular to the incident surface of the first and second beam splitters.

REFERENCES:
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patent: 4413342 (1983-11-01), Cohen et al.
patent: 4809291 (1989-02-01), Byer et al.
patent: 5093832 (1992-03-01), Bethune et al.
patent: 5287367 (1994-02-01), Yanagawa
patent: 5383209 (1995-01-01), Hwang

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