Coherent light generators – Particular resonant cavity – Distributed feedback
Patent
1997-09-15
2000-05-09
Sanghavi, Hemang
Coherent light generators
Particular resonant cavity
Distributed feedback
372 45, 372 43, 372 28, 257184, 257201, H01S 308, H01S 3085
Patent
active
060613807
ABSTRACT:
VCSEL for high speed operation and method of fabrication including a substrate element, a first stack of distributed Bragg reflectors disposed on a surface of the substrate element, an active region lattice matched to a surface of the first stack of distributed Bragg reflectors, and a second stack of distributed Bragg reflectors lattice matched to a surface of the active region. The active region includes a plurality of quantum well layers, or structures, and a plurality of doped barrier layers. The doping of the barrier layers allows for a faster recombination time of the carriers prior to any occurrence of lateral carrier diffusion. This faster recombination time of the carriers prevents turn-off tails when the VCSEL device is switched off.
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patent: 5737353 (1998-04-01), Sasaki
Jiang Wenbin
Lebby Michael S.
Ramdani Jamal
Kim Sung T.
Koch William E.
Motorola Inc.
Parson Eugene A.
Sanghavi Hemang
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