Adjustable etalon laser mode selector and method of adjustment

Details Adjustable etalon laser mode selector and method of adjustment Adjustable etalon laser mode selector and method of adjustment

1976-09-03

1978-06-27

Sikes, William L.

Oscillators

Molecular or particle resonant type

350287, H01S 3082

Patent

active

040978184

ABSTRACT:
An adjustable etalon mode selector is mounted within the optical cavity of a laser and includes a pair of spaced prisms mounted along the optical axis of the cavity with the laser beam passing therethrough and means for selectively adjusting the spacing between the prisms in a manner such that the resonant frequency of the laser cavity and etalon combination remains constant during the adjustment of the prism spacing in order that a particular mode of the operating wavelength spectrum of the laser may be selected for output, without the adjustment modulating the cavity natural resonant frequency.

REFERENCES:
patent: 3541471 (1970-11-01), Kaminow et al.
patent: 3775699 (1973-11-01), Cassels

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