Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-09-06
2005-09-06
Fureman, Jared J. (Department: 2876)
Optical waveguides
With optical coupler
Input/output coupler
C385S014000, C385S088000, C385S092000, C385S094000, C385S129000, C385S130000, C385S131000, C372S006000
Reexamination Certificate
active
06941043
ABSTRACT:
An ECLD assembly includes a thermally stabilized substrate, a laser device fixedly mounted in relation to the substrate, and a waveguide with a grating region having a grating formed therein. The waveguide is positioned to receive light emitted by the laser device and is attached to a top surface of the substrate. The ECLD's output wavelength is stabilized by one or more of the following: (1) mounting the waveguide so that its outer surface is less than 60 μm, and preferably less than about 30 μm from the top surface of the substrate; (2) placing a thermal cover (e.g., a generally semi-cylindrical shell or a strip of material formed with a V-groove) in thermal contact with the substrate and overlies at least a portion of the grating region; (3) bonding the waveguide to the substrate at first, second, and third positions where the first position is proximate the laser device, the second position is proximate a first end of the grating region, and the third position is proximate a second end of the grating region.
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Kupershmidt Vladimir
Kusnadi Frans
Major John Cameron
Fureman Jared J.
K2 Optronics, Inc.
Townsend and Townsend / and Crew LLP
Trail Allyson N
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