Acousto-optic superlattice modulator using Fibre Bragg grating
Acousto-optic superlattice modulator using Fibre Bragg grating
A modulator is reported in which an extensional acoustic wave is launched along a fiber Bragg grating. The acousto-optic superlattice effect causes an enhancement in reflectivity within a narrow spectral region on both sides of the Bragg wavelength. For a fixed acoustic propagation direction, the Doppler shift can be either positive or negative, depending on whether the wavelength of the incident light lies above or below the Bragg condition. The device can function as a Bragg cell and a tunable filter.
1515-1517
Liu, W.F.
2aa5be46-280a-4aa7-9ffb-8557679d90f7
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Dong, L.
4a30a247-d676-42ef-aaf4-061579d6d64e
1997
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.
(1997)
Acousto-optic superlattice modulator using Fibre Bragg grating.
Optics Letters, 22 (19), .
(doi:10.1364/OL.22.001515).
Abstract
A modulator is reported in which an extensional acoustic wave is launched along a fiber Bragg grating. The acousto-optic superlattice effect causes an enhancement in reflectivity within a narrow spectral region on both sides of the Bragg wavelength. For a fixed acoustic propagation direction, the Doppler shift can be either positive or negative, depending on whether the wavelength of the incident light lies above or below the Bragg condition. The device can function as a Bragg cell and a tunable filter.
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Published date: 1997
Identifiers
Local EPrints ID: 77967
URI: http://eprints.soton.ac.uk/id/eprint/77967
ISSN: 0146-9592
PURE UUID: 3c6e00f0-586b-4ce2-a4a3-805929851261
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 00:03
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Author:
W.F. Liu
Author:
P.St.J. Russell
Author:
L. Dong
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