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

1985-10-29

1986-10-14

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 27, 372 21, 372 98, 372 10, 307427, H01S 310

Patent

active

046176667

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 E and O rays of the fundamental beam due to birefringence are eliminated to improve the efficiency and stability of the cavity.

REFERENCES:
patent: 4331891 (1982-05-01), Ruzzo
patent: 4408329 (1983-10-01), Ferguson
patent: 4413342 (1983-11-01), Cohen et al.
patent: 4510402 (1985-04-01), Summers et al.
Dmetriev et al.; "Enhancement of the Efficiency of Second-Harmonic Generation Inside a Resonator"; Sov. Jour. Quant. Elect. 4(9), Mar. 1975.

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