Coherent light generators – Particular resonant cavity – Distributed feedback
Patent
1997-11-04
1999-11-30
Healy, Brian
Coherent light generators
Particular resonant cavity
Distributed feedback
372 43, 372 45, 372 46, 372 50, 372 92, 372 99, 372106, 437129, H01S 308, H01L 2120
Patent
active
059955317
ABSTRACT:
A vertical cavity surface emitting laser with polarization control includes a first stack of distributed Bragg reflectors positioned on a substrate with an active region including a first cladding region and a second cladding region positioned on opposite sides of an active area overlying the first stack of distributed Bragg reflectors A second stack of distributed Bragg reflectors is positioned on the active region. The second stack has an ion implantation region formed to control and define a lasing threshold of the laser. The second stack further is formed into a ridge with the ridge being etched into the ion implantation region to form an elongated shape so as to polarize light emitted by the second stack of distributed Bragg reflectors
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Gable Benjamin W.
Gaw Craig A.
Jiang Wenbin
Healy Brian
Koch William E.
Motorola Inc.
Parsons Eugene A.
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