Coherent light generators – Particular resonant cavity – Specified cavity component
Reexamination Certificate
2007-12-26
2009-12-01
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular resonant cavity
Specified cavity component
C372S107000
Reexamination Certificate
active
07627018
ABSTRACT:
A VCSEL waveguide grating coupler is provided such that a first and second mirror are positioned to define a resonant cavity between them. The waveguide grating coupler further includes a waveguide having a first grating formed as a part of the waveguide to couple light of a first polarization mode into the waveguide. A second grating is formed on the waveguide grating coupler and is orthogonal to the first grating. The second grating is operative to enhance the light coupled to the waveguide by creating a loss difference between light of the first polarization mode and light of a second polarization mode, so that light of the first polarization mode lases preferentially within the VCSEL.
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Guilfoyle Peter
Louderback Duane
Mahnkopf Sven
Petal Ketan
DLA Piper (LLP) US
Harvey Minsun
Nguyen Tuan N.
Opticomp Corporation
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