Frequency filtered solid-state laser

Details Frequency filtered solid-state laser Frequency filtered solid-state laser

1992-02-03

1993-11-16

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 29, 372 31, 372 32, 372 27, 372 75, 359328, H01S 310

Patent

active

052630382

ABSTRACT:
A method is provided for controlling the output frequency of a laser having a lasant gain medium which is characterized by at least two gain curve distributions over a range of lasant frequencies and having a laser cavity which is characterized by at least one resonant frequency within one gain curve distribution. The method comprises the steps of: locating in the laser cavity a first Lyot filter which has a transmission band which favors the frequency range of one gain curve distribution in preference to the frequency range of the other gain curves; and locating in the cavity a second Lyot filter which has a transmission band which favors said one resonant frequency within the frequency range of the one gain curve, whereby an essentially single frequency output is obtained.

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patent: 5012473 (1991-04-01), Reedy
patent: 5031182 (1991-07-01), Anthon et al.

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