Optical Faraday rotator using Ce-substituted fibrous YIG single crystal grown by floating zone method with YAG laser heating

Author

Sekijima, T. ; Fujii, T. ; Wakino, K. ; Okada, M.

Author_Institution

Murata Manuf. Co. Ltd., Nagaokakyo, Japan

Volume

3

fYear

1999

fDate

13-19 June 1999

Firstpage

1369

Abstract

A new optical Faraday rotator using fibrous Ce-substituted YIG (Ce:YIG) single crystal is developed. The fibrous Ce:YIG single crystal was successfully grown by floating zone method with IR 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 /spl lambda/=1.55 /spl mu/m compared with commonly used Bi-substituted YIG (Bi:YIG) films. Ce:YIG single crystals grown by our method are expected to reduce the cost of optical isolators.

Keywords

Faraday effect; cerium; crystal growth from melt; garnets; laser beam effects; magneto-optical isolators; optical communication equipment; optical fabrication; optical rotation; 1.55 mum; Ce-substituted fibrous YIG single crystal growth; IR assisted YAG laser heating; YAG laser heating; YFe5O12:Ce; YIG:Ce; fast growth rate; fibrous Ce:YIG single crystal; figure of merit; floating zone method; good quality; optical Faraday rotator; optical isolators; Atmosphere; Atom optics; Crystals; Feeds; Heating; Isolators; Mirrors; Optical films; Optical filters; Semiconductor films;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1999 IEEE MTT-S International

Conference_Location

Anaheim, CA, USA

Print_ISBN

0-7803-5135-5

Type

conf

DOI

10.1109/MWSYM.1999.779642

Filename

779642