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Applied Optics

Applied Optics


  • Vol. 25, Iss. 12 — Jun. 15, 1986
  • pp: 1940–1945

Temperature-stable Faraday rotator material and its use in high-performance optical isolators

Shigetaka Matsumoto and Shizuo Suzuki  »View Author Affiliations

Applied Optics, Vol. 25, Issue 12, pp. 1940-1945 (1986)

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The temperature characteristics of Faraday rotator material Y3 x Gd3(1− x )Fe5O12 are discussed. The material with YIG molar fraction x between 0.57 and 0.7 has a small temperature coefficient of the Faraday rotation and is suitable for isolators with temperature-stable isolation. The extinction ratio of the Faraday rotator can be minimized by selecting an appropriate polarization direction of light incident on it. This polarization direction should also be selected by taking the temperature dependence into account. Isolators using the material as a rotator hold isolation to >40 dB throughout the temperature range from 0 to 50°C.

© 1986 Optical Society of America

Original Manuscript: October 15, 1985
Published: June 15, 1986

Shigetaka Matsumoto and Shizuo Suzuki, "Temperature-stable Faraday rotator material and its use in high-performance optical isolators," Appl. Opt. 25, 1940-1945 (1986)

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