CA1156489A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Interferometer with a tunable optical resonator incorporating a monomode optical fibre and application to filtering and spectography
Assignee: Thales SA
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Filing: 1981-01-27
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Granted: 1983-11-08
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Expires: 2001-01-27
Abstract
Abstract ABSTRACT OF THE DISCLOSURE An interferometer having a tunable optical resonator using a monomode optical fibre as the light propagation medium. According to a prefer-red embodiment the fibre (1) is wound around a cylindrical mandrel (7) made from a piezoelectric ceramic material. Multiple reflections are ensured by reflecting deposits at the fibre ends. Rapid scanning of several orders of interference can be obtained by applying an alternating voltage V to the ceramic material.
Inventors
- 👤 Michel Papuchon
- 👤 Claude Puech
- 👤 Herve Ardity
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-23 22:19
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/12; G01J3/26; G02; G02F; G02F1/00; G02F1/01; G02F1/21; G02F1/225; G02F1/2252; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/293; G02B6/29346; G02B6/29358; G02B6/29359; G02F1/0128; G02F1/0131; G02F1/0134
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
66 words
A tunable optical resonator comprising: the combination of two partially reflecting and transmitting means and an optical monomode fiber positioned between said two partially reflecting and transmitting means; and means for varying the optical length of said resonator wherein said monomode fiber is wound on a core and wherein means are disposed to strain said core in order to vary the optical length of said resonator.
Claim 2
Dependent Claim
66 words
A tunable optical resonator comprising: the combination of two partially reflecting and transmitting means and an optical monomode fiber positioned between said two partially reflecting and transmitting means; and means for varying the optical length of said resonator wherein said monomode fiber is wound on a core and wherein means are disposed to strain said core in order to vary the optical length of said resonator.
Claim 3
Dependent Claim
16 words
A tunable optical resonator as claimed in Claim 1 wherein said core is a cylindrical mandrel.
Claim 4
Dependent Claim
46 words
The tunable optical resonator as claimed in Claim 2, wherein said mandrel is of piezoelectric material and electrodes are formed at the inner and outer surface of said mandrel and connected to a voltage source and wherein said mandrel is filled with an essentially incompressible material.
Claim 5
Dependent Claim
34 words
A tunable optical resonator as claimed in Claim 1 wherein said partially reflecting and trans-mitting means are coatings of dielectric or metallic layers on at least a part of the ends of said fiber.
Claim 6
Dependent Claim
27 words
A tunable resonator as claimed in Claim 1, wherein said partially reflecting and transmitting means are gratings formed on said fiber near the ends of said fiber.
Claim 7
Dependent Claim
28 words
A tunable optical resonator as claimed in Claim 1, wherein said partially reflecting and transmitting means are discontinuities created in the vicinity of the ends of said fiber.
Claim 8
Dependent Claim
34 words
A monochronator comprising an optical source and at least two coupled optical resonators as claimed in Claim 1, wherein the optical length of each of said resonators is adjusted to transmit one spectral band.
References Cited (Backward Citations)
No citation records indexed.
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