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Faraday rotation in coiled, monomode optical fibres: isolators, filters and magnetic sensors

Record type: Article

It is shown that efficient Faraday rotation can be obtained in a fiber coil if the circumference of the coil is exactly equal to the beat length of the birefringence caused by bending. The essential elements of a practical, compact isolator based on this principle are demonstrated. Forty-five degrees of Faraday rotation were obtained in a 40-turn, 15-mm-diameter coil placed in the field of a permanent magnet (~0.29 T). The design of optical filters and magnetic sensors is also discussed.

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Citation

Day, G.W., Payne, D.N., Barlow, A.J. and Ramskov Hansen, J.J. (1982) Faraday rotation in coiled, monomode optical fibres: isolators, filters and magnetic sensors Optics Letters, 7, (5), pp. 238-240. (doi:10.1364/OL.7.000238).

More information

Published date: 1982

Identifiers

Local EPrints ID: 78656
URI: http://eprints.soton.ac.uk/id/eprint/78656
ISSN: 0146-9592
PURE UUID: 7b2bf6a5-eda0-458a-a0ee-2d0e42f9e26e

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

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Contributors

Author: G.W. Day
Author: D.N. Payne
Author: A.J. Barlow
Author: J.J. Ramskov Hansen

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