H - Electricity – 01 – S
Patent
H - Electricity
01
S
88/114, 345/46
H01S 3/10 (2006.01) G01J 3/26 (2006.01) G02B 7/18 (2006.01) H01S 3/098 (2006.01)
Patent
CA 1075800
Abstract of the Invention A Fabry-Perot etalon is mounted within the optical cavity of a laser for selecting the wavelength of the output radiation of that laser from a plurality of discrete wavelength closely distributed about a nominal wavelength. The etalon includes a pair of closely spaced prisms mounted along the optical axis of the laser cavity with the laser beams passing therethrough. Each of the prisms has a first surface facing outwardly of the etalon and inclined at a slight angle to a normal to the optical axis, and each prism includes a second surface optically adjacent and spaced from the second surface of the other prism, each such second surface being inclined relative to its respective first surface.
278591
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