Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2005-08-30
2005-08-30
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S094000, C385S147000
Reexamination Certificate
active
06937796
ABSTRACT:
A heating module keeps a length of erbium-doped optical fiber at a constant temperature. The heating module includes the erbium-doped optical fiber, a heating element, and a temperature sensor embedded in a flexible circuit substrate. Insulating and packaging layers may be placed around the flexible circuit substrate.
REFERENCES:
patent: 6567600 (2003-05-01), Yoshida
MINCO: Thermofoil™ Heaters and Controllers; http://www.minco.com/heaters.php: Jan. 25, 2002; 3 pages.
Adams, Sr. Robert M.
Seal Lowell
Corvis Corporation
Harrity & Snyder LLP
Rahll Jerry T
Ullah Akm Enayet
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