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Measurement of optical nonreciprocal phase shift in a bi-substituted Gd 3 Fe 5 O 12 film and application to waveguide-type optical circulator

1986; Institute of Electrical and Electronics Engineers; Volume: 4; Issue: 3 Linguagem: Inglês

10.1109/jlt.1986.1074718

1558-2213

Tetsuya Mizumoto, Keita Oochi, Takashi Harada, Yoshiyuki Naito,

Advanced Fiber Optic Sensors

An waveguide-type optical circulator can be constructed with an optical nonreciprocal phase shifter and 3-dB directional couplers. We have measured nonreciprocal phase shift in a Bi-substituted Gd 3 Fe 5 O 12 (abbreviated as Bi:GdIG) thin film. It is shown that the optical circulator of several millimeters length can be realized by using Bi:GdIG.