High-performance four-port acousto-optic frequency shifter at 1.55µm using standard single-mode telecommunications fibre
High-performance four-port acousto-optic frequency shifter at 1.55µm using standard single-mode telecommunications fibre
If a four-port fused-taper coupler is constructed from dissimilar fibers, the maximum splitting ratio can be close to zero over a broad spectral band. As previously shown, such a null coupler can be used to form an effective four-port acousto-optic frequency shifter. In Ref. 1, two dissimilar nonstandard fibers were used. Here we report the successful construction of a null coupler made by using standard telecommunications fiber. The procedure involves pretapering one of an identical pair of fibers to provide the necessary dissimilarity. In this way the device can be constructed entirely from one fiber type with four identical ports, and it can be made compatible with any existing network. Our present device used standard 125µm single-mode telecommunications fiber throughout, for operation at a wavelength of 1.55µm.
Culverhouse, D.O.
d437089f-b550-4144-853b-021718ad8275
Farwell, S.G.
ed617700-b4e8-4e94-bc3c-16a9d06a7d35
Birks, T.A.
65bb633e-6fa2-40f7-a1c6-748bb5ca2178
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Pannell, C.N.
002fadf4-f97e-4732-b171-73ed7563ee18
1995
Culverhouse, D.O.
d437089f-b550-4144-853b-021718ad8275
Farwell, S.G.
ed617700-b4e8-4e94-bc3c-16a9d06a7d35
Birks, T.A.
65bb633e-6fa2-40f7-a1c6-748bb5ca2178
Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Pannell, C.N.
002fadf4-f97e-4732-b171-73ed7563ee18
Culverhouse, D.O., Farwell, S.G., Birks, T.A., Russell, P.St.J. and Pannell, C.N.
(1995)
High-performance four-port acousto-optic frequency shifter at 1.55µm using standard single-mode telecommunications fibre.
Conference on Lasers and Electro-Optics (CLEO '95), Baltimore, United States.
21 - 26 May 1995.
Record type:
Conference or Workshop Item
(Paper)
Abstract
If a four-port fused-taper coupler is constructed from dissimilar fibers, the maximum splitting ratio can be close to zero over a broad spectral band. As previously shown, such a null coupler can be used to form an effective four-port acousto-optic frequency shifter. In Ref. 1, two dissimilar nonstandard fibers were used. Here we report the successful construction of a null coupler made by using standard telecommunications fiber. The procedure involves pretapering one of an identical pair of fibers to provide the necessary dissimilarity. In this way the device can be constructed entirely from one fiber type with four identical ports, and it can be made compatible with any existing network. Our present device used standard 125µm single-mode telecommunications fiber throughout, for operation at a wavelength of 1.55µm.
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Published date: 1995
Venue - Dates:
Conference on Lasers and Electro-Optics (CLEO '95), Baltimore, United States, 1995-05-21 - 1995-05-26
Identifiers
Local EPrints ID: 76957
URI: http://eprints.soton.ac.uk/id/eprint/76957
PURE UUID: 438db185-7d45-4b0c-8d69-9d01af2389d8
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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:40
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Contributors
Author:
D.O. Culverhouse
Author:
S.G. Farwell
Author:
T.A. Birks
Author:
P.St.J. Russell
Author:
C.N. Pannell
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