MULTIMODE VERTICAL-CAVITY SURFACE-EMITTING LASER ARRAYS
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United States of America Patent
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Issued Date -
Apr 19, 2012
app pub date -
Jan 29, 2010
filing date -
Jan 29, 2010
priority date (Note) -
Abandoned
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Abstract
Various embodiments of the present invention are directed to monolithic VCSEL arrays where each VCSEL can be configured to lase at a different wavelength. In one embodiment, a monolithic surface-emitting laser array includes a reflective layer, a light-emitting layer (102), and a grating layer (112) configured with two or more non-periodic, sub-wavelength gratings. Each grating is configured to form a resonant cavity with the reflector, and each grating is configured with a grating pattern that shapes one or more internal cavity modes and shapes one or more external transverse modes emitted through the grating.
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