Coherent light generators – Particular active media – Semiconductor
Patent
1994-12-21
1996-02-20
Bovernick, Rodney B.
Coherent light generators
Particular active media
Semiconductor
372 45, 372 96, 372 99, H01S 3085
Patent
active
054935776
ABSTRACT:
A semiconductor light-emitting device and method. The semiconductor light-emitting device is provided with at least one control layer or control region which includes an annular oxidized portion thereof to channel an injection current into the active region, and to provide a lateral refractive index profile for index guiding the light generated within the device. A periodic composition grading of at least one of the mirror stacks in the device provides a reduced operating voltage of the device. The semiconductor light-emitting device has a high efficiency for light generation, and may be formed either as a resonant-cavity light-emitting diode (RCLED) or as a vertical-cavity surface-emitting laser (VCSEL).
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Choquette Kent D.
Lear Kevin L.
Schneider, Jr. Richard P.
Bovernick Rodney B.
Cone Gregory A.
Hohimer John P.
Sandia Corporation
Song Yisun
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