Optical filter device for temperature dependence control

Optical waveguides – With optical coupler – Particular coupling structure

Reexamination Certificate

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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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patent: 6049414 (2000-04-01), Espindola et al.
patent: 6147341 (2000-11-01), Lemaire et al.
patent: 6377727 (2002-04-01), Dariotis et al.
patent: WO 9906859 (1999-02-01), None
patent: WO 9947955 (1999-09-01), None
patent: WO 0102886 (2001-01-01), None
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.

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