Gain tuned laser resonator

Details Gain tuned laser resonator Gain tuned laser resonator

1982-06-10

1985-02-26

Davie, James W.

Coherent light generators

Particular beam control device

Producing plural wavelength output

372 25, 372 97, 372102, H01S 310

Patent

active

045021449

ABSTRACT:
Multiple wavelengths are produced from a single laser gain medium by utilizing gain saturation effects within the laser cavity. Two or more partially reflecting mirrors are coupled to a totally reflecting mirror through the laser gain medium by a grating element. The optical path lengths defined by each of the partially reflecting mirrors are varied by the positioning of the partially reflecting mirrors. This permits a lower gain line to build up first, followed by a higher gain line, which then terminates the lower gain line through gain saturation. The frequency switching times and pulse intensities of the wavelengths can be varied by varying the optical path lengths.

REFERENCES:
patent: 3969684 (1976-07-01), de Witte et al.
patent: 4241318 (1980-12-01), Comera et al.

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