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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 7, Iss. 5 — May. 1, 1982
  • pp: 238–240

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

G. W. Day, D. N. Payne, A. J. Barlow, and J. J. Ramskov-Hansen  »View Author Affiliations


Optics Letters, Vol. 7, Issue 5, pp. 238-240 (1982)
http://dx.doi.org/10.1364/OL.7.000238


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Abstract

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.

© 1982 Optical Society of America

History
Original Manuscript: January 4, 1981
Published: May 1, 1982

Citation
G. W. Day, D. N. Payne, A. J. Barlow, and J. J. Ramskov-Hansen, "Faraday rotation in coiled, monomode optical fibers: isolators, filters, and magnetic sensors," Opt. Lett. 7, 238-240 (1982)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-7-5-238

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