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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 32 — Nov. 10, 2004
  • pp: 6030–6039

Thermally induced birefringence in Faraday devices made from terbium gallium garnet-polycrystalline ceramics

Mikhail A. Kagan and Efim A. Khazanov  »View Author Affiliations


Applied Optics, Vol. 43, Issue 32, pp. 6030-6039 (2004)
http://dx.doi.org/10.1364/AO.43.006030


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Abstract

We have developed a model that describes thermally induced birefringence in polycrystalline ceramics that are exposed to a magnetic field. Conditions under which traditional compensation techniques (for glass and single crystals) can be effective for ceramics have been found. It is shown that a ceramic is almost equivalent to a [111]-oriented crystal if the ratio of the rod length to the grain size is ∼300 or more. In particular, residual depolarization (after the compensation techniques are applied) is inversely proportional to this ratio, which is an important consequence of the random nature of thermally induced birefringence in ceramics.

© 2004 Optical Society of America

OCIS Codes
(160.3820) Materials : Magneto-optical materials
(190.4870) Nonlinear optics : Photothermal effects
(230.3240) Optical devices : Isolators

History
Original Manuscript: January 13, 2004
Revised Manuscript: August 20, 2004
Published: November 10, 2004

Citation
Mikhail A. Kagan and Efim A. Khazanov, "Thermally induced birefringence in Faraday devices made from terbium gallium garnet-polycrystalline ceramics," Appl. Opt. 43, 6030-6039 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-32-6030

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