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100% Efficient narrow-band acousto-optic tunable reflector using fibre Bragg grating

100% Efficient narrow-band acousto-optic tunable reflector using fibre Bragg grating
100% Efficient narrow-band acousto-optic tunable reflector using fibre Bragg grating
We report a 100% efficient Bragg-grating-based acoustooptic superlattice modulator in a fibre whose diameter is reduced by HF etching. The acoustically-induced reflections, which appear on both sides of the Bragg stop-band, are tunable by altering the acoustic frequency, and have bandwidths corresponding to weak versions of the permanent Bragg grating. These unique properties may lead to important applications in, e.g., reconfigurable wavelength-division-multiplexing, Q-switching, amplitude modulation and frequency shifting. We also show that the acoustooptic superlattice effect is a sensitive diagnostic tool for assessing the uniformity of long, strong Bragg gratings
Liu, W.F.
2aa5be46-280a-4aa7-9ffb-8557679d90f7
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Dong, L.
4a30a247-d676-42ef-aaf4-061579d6d64e
Liu, W.F.
2aa5be46-280a-4aa7-9ffb-8557679d90f7
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Dong, L.
4a30a247-d676-42ef-aaf4-061579d6d64e

Liu, W.F., Russell, P.St.J. and Dong, L. (1998) 100% Efficient narrow-band acousto-optic tunable reflector using fibre Bragg grating. IoP In-Fibre Bragg Gratings and Special Fibres, United Kingdom.

Record type: Conference or Workshop Item (Paper)

Abstract

We report a 100% efficient Bragg-grating-based acoustooptic superlattice modulator in a fibre whose diameter is reduced by HF etching. The acoustically-induced reflections, which appear on both sides of the Bragg stop-band, are tunable by altering the acoustic frequency, and have bandwidths corresponding to weak versions of the permanent Bragg grating. These unique properties may lead to important applications in, e.g., reconfigurable wavelength-division-multiplexing, Q-switching, amplitude modulation and frequency shifting. We also show that the acoustooptic superlattice effect is a sensitive diagnostic tool for assessing the uniformity of long, strong Bragg gratings

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More information

Published date: 13 May 1998
Venue - Dates: IoP In-Fibre Bragg Gratings and Special Fibres, United Kingdom, 1998-05-13
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 76650
URI: https://eprints.soton.ac.uk/id/eprint/76650
PURE UUID: be36753d-3c62-4704-9042-83b671d1ff64

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:39

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Contributors

Author: W.F. Liu
Author: P.St.J. Russell
Author: L. Dong

University divisions

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