IP Library › Granted Patent US 7,085,439
Granted Patent B2
US 7,085,439 · App. 10/254,656 · Granted Aug 1, 2006

Tunable filter consisting of an optical fiber, and a corresponding method

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Quick Facts
Patent No.
US 7,085,439
App. No.
10/254,656
Granted
Aug 1, 2006
Kind
B2
Abstract

The invention concerns a tunable filter comprising an optical fiber incorporating a Bragg grating on a portion of the fiber. Said fiber portion is coated with a material retained within a confined space and adapted to exert pressure on said Bragg grating to compress said portion of fiber radially and to stretch it longitudinally.

Claims (8)

1. A tunable filter comprising an optical fiber incorporating a Bragg grating on a portion of said fiber, characterized in that said portion of fiber is coated with a material retained within a confined space and adapted to exert pressure on said Bragg grating to compress said portion of fiber radially and to stretch said portion of fiber longitudinally, wherein:

said pressure is induced by oxidation-reduction of the material which expands in said confined space; and

said material is disposed between a first electrode and a second electrode and is associated with an electrolyte.

2. The tunable filter according to claim 1 , characterized in that the material is an electrochemical material selected from the group comprising conductive polymers, inorganic insertion compounds, intercalation graphite compounds, and Fullerene compounds.

3. The tunable filter according to claim 1 , characterized in that the electrolyte is an ionically conductive gel.

4. A tunable filter comprising an optical fiber incorporating a Bragg grating on a portion of said fiber, characterized in that said portion of fiber is coated with a material retained within a confined space and adapted to exert pressure on said Bragg grating to compress said portion of fiber radially and to stretch said portion of fiber longitudinally, wherein said material is disposed between a first electrode and a second electrode and is associated with an electrolyte.

5. The tunable filter according to claim 4 , characterized in that the material is an electrochemical material selected from the group comprising conductive polymers, inorganic insertion compounds, intercalation graphite compounds, and Fullerene compounds.

6. The tunable filter according to claim 4 , characterized in that the electrolyte is an ionically conductive gel.

Assignments (2)
PATENT RELEASE AND REASSIGNMENT Recorded Jul 5, 2022
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: II-VI INCORPORATED; MARLOW INDUSTRIES, INC.; EPIWORKS, INC.; LIGHTSMYTH TECHNOLOGIES, INC.; KAILIGHT PHOTONICS, INC.; COADNA PHOTONICS, INC.; OPTIUM CORPORATION; FINISAR CORPORATION; II-VI OPTICAL SYSTEMS, INC.; M CUBED TECHNOLOGIES, INC.; II-VI PHOTONICS (US), INC.; II-VI DELAWARE, INC.; II-VI OPTOELECTRONIC DEVICES, INC.; PHOTOP TECHNOLOGIES, INC.
Reel/Frame 060574/0001 →
SECURITY INTEREST Recorded Jul 1, 2022
From: II-VI INCORPORATED; II-VI DELAWARE, INC.; M CUBED TECHNOLOGIES, INC.; II-VI PHOTONICS (US), INC.; PHOTOP TECHNOLOGIES, INC.; COHERENT, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 060562/0254 →