Title :
Optical Faraday rotator using Ce-substituted fibrous YIG single crystal grown by floating-zone method with YAG laser heating
Author :
Sekijima, Takenori ; Fujii, Takashi ; Wakino, Kikuo ; Okada, Masakatsu
Author_Institution :
Ritsumeikan Univ., Kyoto, Japan
fDate :
12/1/1999 12:00:00 AM
Abstract :
A new optical Faraday rotator using a fibrous Ce-substituted yttrium-iron-garnet (Ce:YIG) single crystal was developed. The fibrous Ce:YIG single crystal was successfully grown by the floating-zone method with infrared-assisted YAG laser heating at a fast growth rate. This crystal has a good quality and shows a better figure-of-merit for an optical Faraday rotator at wavelength λ=1.55 μm compared with commonly used Bi-substituted YIG films. Ce:YIG single crystals grown by our method are expected to reduce the cost of optical isolators
Keywords :
Faraday effect; cerium; garnets; laser materials processing; magneto-optical devices; optical communication equipment; optical rotation; yttrium compounds; zone melting; 1.55 micron; Ce-substituted fibrous YIG single crystal; Ce:YIG single crystals; YAG; YAG laser heating; YAl5O12; YFe5O12:Ce; YIG:Ce; fast growth rate; floating-zone method; infrared-assisted YAG laser heating; optical Faraday rotator; optical fibre communication; semiconductor laser operation stability; Atmosphere; Crystals; Infrared heating; Iron; Isolators; Optical films; Optical filters; Semiconductor films; Semiconductor lasers; Yttrium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
