Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2011-03-22
2011-03-22
Van Roy, Tod T (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S096000, C372S099000
Reexamination Certificate
active
07912106
ABSTRACT:
A surface-emitting photonic device including a structure disposed therein to enhance a performance thereof. The structure includes a two dimensionally periodic second order distributed feedback device (DFB) to emit diffraction limited outcoupled laser light having a predetermined wavelength along a propagation direction that is substantially normal to a plane of the DFB, and a first order distributed Bragg reflector (DBR) coplanar with, adjacent to and surrounding the DFB, a geometry of the DBR being selected such that a bandgap of the DBR is maximized and centered around the predetermined wavelength of the emitted light, a substrate, and either an optical gain layer, or a semi-conductor quantum well laser disposed within the substrate.
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Baumann Kristian Gotthold
Mahrt Rainer Friedbert
Moll Nikolaj
Stöferle Thilo Hermann Curt
Cantor & Colburn LLP
International Business Machines - Corporation
Kaufman Stephen
Roy Tod T Van
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