Coherent light generators – Particular resonant cavity – Specified cavity component
Reexamination Certificate
2005-02-08
2005-02-08
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular resonant cavity
Specified cavity component
C372S099000
Reexamination Certificate
active
06853671
ABSTRACT:
A semiconductor-based laser tuning method and apparatus. In one aspect of the present invention, an apparatus according to an embodiment of the present invention includes a gain medium disposed in a semiconductor substrate. A laser cavity is disposed in the semiconductor substrate and is optically coupled to the gain medium. A first reflector defines one end of the laser cavity. The first reflector includes a first tunable Bragg grating disposed in the semiconductor substrate. The first tunable Bragg grating includes a first plurality of silicon and polysilicon interfaces along the semiconductor substrate such that there is a first plurality of perturbations of a refractive index along the Bragg grating. The first tunable Bragg grating selectively reflects light having a tunable center wavelength so as to emit light through stimulated emission having the tunable center wavelength in the laser cavity. A second reflector defines an other end of the laser cavity.
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Jones Richard
Liu Ansheng
Nicolaescu Remus
Paniccia Mario J.
Blakley Sokoloff Taylor & Zafman LLP
Harvey Minsun Oh
Intel Corporation
Nguyen Phillip
LandOfFree
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