Optical waveguides – Planar optical waveguide
Reexamination Certificate
2005-09-13
2005-09-13
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
Planar optical waveguide
C385S014000
Reexamination Certificate
active
06944386
ABSTRACT:
There is disclosed an improved optical device (110), such as a laser, modulator, amplifier, switch, ore the like. The invention provides an optically active device (110) comprising: an optically active region (150) having an input/output end (165); and an optically passive region (155, 160) extending from said input/output end (165, 170) of the optically active region (150) an input/output end (175, 180) of the device (110).
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Daspin & Aument, LLP
Perkins Jefferson
Stein James D.
The University Court of the University of Glasgow
Ullah Akm Enayet
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