Optically encoded phase matched second harmonic generation devic

Details Optically encoded phase matched second harmonic generation devic Optically encoded phase matched second harmonic generation devic

1991-10-17

1993-10-12

Healy, Brian

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 23, 385129, 385130, 385131, 385122, 385141, 359328, 359326, 359332, H01S 310, H03F 700, G02B 100

Patent

active

052532585

ABSTRACT:
There is described a semiconductor microcrystallite doped glass that exhibits SHG, and a method of preparing, or encoding, a semiconductor microcrystallite doped glass by the simultaneous injection of fundamental and second harmonic fields, such as 1.06 .mu.m and 532 nm. More specifically, the disclosure pertains to a structure that exhibits SHG, the structure being comprised of, by example, borosilicate glass that contains CdS.sub.x Se.sub.1-x microcrystallites. Also disclosed are embodiments of devices having an optical waveguide structure formed within a glass substrate that contains semiconductor microcrystallites. The optical waveguide structure guides and contains injected radiation and also converts a portion thereof to the second harmonic. Also disclosed are optoelectronic devices that include frequency doublers, self-doubling lasant material, bichromatic optical switches, and a volume holographic medium, all of which include a glass host having semiconductor microcrystallites embedded within.

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