Frequency doubling a laser beam by using intracavity type II pha

Details Frequency doubling a laser beam by using intracavity type II pha Frequency doubling a laser beam by using intracavity type II pha

1985-04-17

1986-10-21

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 27, 372 98, 307427, H01S 310

Patent

active

046189572

ABSTRACT:
A frequency doubler for a laser is disclosed in which a Type II SHG crystal is oriented to generate a second harmonic frequency beam in response to the orthogonal components of a fundamental beam. After the fundamental beam makes a round trip through the SHG crystal, any differential phase delays between the orthogonal components due to birefringence are eliminated to improve the efficiency of the cavity.

REFERENCES:
patent: 4331891 (1982-05-01), Rizzo
patent: 4346314 (1982-08-01), Craxton
patent: 4408329 (1983-10-01), Ferguson
patent: 4413342 (1983-11-01), Cohen et al.
patent: 4510402 (1985-04-01), Summers et al.
Dmitriev, et al; "Enhancement of the Eff. of Second-Harmonic Generation Inside a Resonator"; Sov. Jour. Quant. Elect. 4(9), Mar. 75, p. 1083.

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