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Correction of polarisation distortions using phase conjugation via stimulated Brillouin scattering

Correction of polarisation distortions using phase conjugation via stimulated Brillouin scattering
Correction of polarisation distortions using phase conjugation via stimulated Brillouin scattering
A scheme using phase conjugation via stimulated Brillouin scattering in methane gas has been developed for the accurate conjugation of both the polarisation state and the phase of a non-uniformly depolarised laser beam. It incorporates a two-plate tapered light guide with metallic reflecting surfaces which has the property of preserving the linear polarisation of the input light. This scheme has been successfully applied to a Nd:glass amplifier arrangement. The residual birefringence loss of 3% (after a double pass) was found to be independent of pump power to the amplifier even when this was increased to a level sufficient to give a single-pass depolarisation loss of 20%.
0030-4018
396-402
Carr, I.D.
07e21224-075b-47c6-9f33-e11d4e0e9595
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Carr, I.D.
07e21224-075b-47c6-9f33-e11d4e0e9595
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Carr, I.D. and Hanna, D.C. (1987) Correction of polarisation distortions using phase conjugation via stimulated Brillouin scattering. Optics Communications, 62 (6), 396-402. (doi:10.1016/0030-4018(87)90007-1).

Record type: Article

Abstract

A scheme using phase conjugation via stimulated Brillouin scattering in methane gas has been developed for the accurate conjugation of both the polarisation state and the phase of a non-uniformly depolarised laser beam. It incorporates a two-plate tapered light guide with metallic reflecting surfaces which has the property of preserving the linear polarisation of the input light. This scheme has been successfully applied to a Nd:glass amplifier arrangement. The residual birefringence loss of 3% (after a double pass) was found to be independent of pump power to the amplifier even when this was increased to a level sufficient to give a single-pass depolarisation loss of 20%.

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Published date: 1987

Identifiers

Local EPrints ID: 78717
URI: http://eprints.soton.ac.uk/id/eprint/78717
ISSN: 0030-4018
PURE UUID: 2e493173-5072-46fb-b608-8a184bd6349e

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:20

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Contributors

Author: I.D. Carr
Author: D.C. Hanna

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