Abstract

The temperature characteristics of Faraday rotator material Y_3xGd_3(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

High-isolation optical isolator using a BiCaInVIG single crystal

Xiaoming Ma and Shangping Tao
Appl. Opt. 31(21) 4122-4124 (1992)

Temperature-stabilized optical isolator for collimated light using (BiLuGd)₃Fe₅O₁₂/(BiGd)₃(FeGa)₅O₁₂ composite film

Kaoru Matsuda, Hisashi Minemoto, Osamu Kamada, and Satoshi Ishizuka
Appl. Opt. 27(7) 1329-1333 (1988)

Fiber-embedded micro-Faraday rotator for the infrared

Kazuo Shiraishi
Appl. Opt. 24(7) 951-954 (1985)

Wavelength independent Faraday isolator

P. A. Schulz
Appl. Opt. 28(20) 4458-4464 (1989)

Microisolator

Kazuo Shiraishi, Satoshi Sugaya, Kazutaka Baba, and Shojiro Kawakami
Appl. Opt. 25(2) 311-314 (1986)