Coherent light generators – Particular active media – Semiconductor
Patent
1996-07-01
1998-05-26
Bovernick, Rodney B.
Coherent light generators
Particular active media
Semiconductor
372 29, 372 96, H01S 319, H01S 313, H01S 308
Patent
active
057578362
ABSTRACT:
A vertical cavity surface emitting laser (VCSEL) having a first and a second mirror stack and an active region is formed utilizing epitaxial layer growth techniques. A lateral photodetector is integrally formed in the epitaxial growth layers, thereby providing for a VCSEL with laterally integrated photodetector. An isolation region is formed in the epitaxial growth layers between the VCSEL and the photodetector thereby isolating the VCSEL and the lateral photodetector. The integrated VCSEL and lateral photodetector capable of monitoring reflected laser emission, thus laser power output of the VCSEL and employing feedback to maintain a specific laser power output level, thereby capable of automatic power control (APC).
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Neamen, Donald, Semiconductor Physics and Devices:Basic Principles, Illinois: Irwin, 1992, p. 628.
Jiang Wenbin
Lebby Michael S.
Shieh Chan-Long
Bovernick Rodney B.
Leung Quyen Phan
Motorola Inc.
Parsons Eugene A.
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