Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-04-14
2010-02-02
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S043010, C257S079000, C257S084000, C257S086000, C257S098000
Reexamination Certificate
active
07656922
ABSTRACT:
A laser and electroabsorption modulator (EAM) are monolithically integrated through an etched facet process. Epitaxial layers on a wafer include a first layer for a laser structure and a second layer for an EAM structure. Strong optical coupling between the laser and the EAM is realized by using two 45-degree turning mirrors to route light vertically from the laser waveguide to the EAM waveguide. A directional angled etch process is used to form the two angled facets.
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Behfar Alex A.
Green Malcolm R.
Schremer Alfred T.
Binoptics Corporation
Fordé Delma R
Harvey Minsun
Jones Tullar & Cooper P.C.
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