Coherent light generators – Particular active media – Semiconductor
Patent
1990-05-07
1991-06-11
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
372 24, 372 46, H01S 319
Patent
active
050238825
ABSTRACT:
A semiconductor laser array includes a set of low-loss waveguides for transmitting generated light waves to an external facet. The width of the output waveguides is less than a critical width required for complete confinement of the transmitted light so that the spot width of the light transmitted by each waveguide is increased to greater than 75% of the spacing between the output waveguides to produce a single-lobed beam. In one embodiment, scanning contacts induce a bias on a set of low-loss output waveguides to scan an output beam.
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Davie James W.
Xerox Corporation
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