Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2005-06-28
2005-06-28
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S147000, C385S037000, C385S013000
Reexamination Certificate
active
06912346
ABSTRACT:
The invention provides an optical filter device which is particularly suitable for compensating the gain produced by an erbium doped fiber amplifier due to temperature variations. The device has a tapered fiber filter mounted on a rigid substrate, such as aluminium, in such a manner that the tapered portion of the filter does not come in contact with the substrate. The fiber of the filter is preferably made of silica.
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G.W. Yoffe et al.; Passive temperature-compensating . . . ; Oct. 20, 1995; pp. 6859-6861; Applied Optics.
G.W. Yoffe et al.; Temperature-compensated optical-fiber Bragg gratings; Feb. 26, 1995; pp. 134-135; OFC '95 Technical Digest.
Gonthier François
Martineau Lilian
ITF Optical Technologies Inc.
ITF Technologies Optiques Inc.
Primak George J.
Rojas Omar
Ullah Akm Enayet
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