Novel Faraday Rotator by Use of Cryogenic TGG Ceramics

Ryo YASUHARA; Shigeki TOKITA; Junji KAWANAKA; Hirofumi KAN; Toshiyuki KAWASHIMA; Hideki YAGI; Hoshiteru NOZAWA; Takagimi YANAGITANI; Yasushi FUJIMOTO; Hidetsugu YOSHIDA; HMasahiro NAKATSUKA

doi:10.2184/lsj.36.1306

Optical Materials and Optical Devices

Novel Faraday Rotator by Use of Cryogenic TGG Ceramics

Ryo YASUHARA, Shigeki TOKITA, Junji KAWANAKA, Hirofumi KAN, Toshiyuki KAWASHIMA, Hideki YAGI, Hoshiteru NOZAWA, Takagimi YANAGITANI, Yasushi FUJIMOTO, Hidetsugu YOSHIDA, HMasahiro NAKATSUKA

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Keywords: Magnet-optical material, Faraday effect, High average power laser

JOURNAL FREE ACCESS

2008 Volume 36 Issue APLS Pages 1306-1309

DOI https://doi.org/10.2184/lsj.36.1306

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Abstract

We have proposed the cryogenic TGG ceramics based Faraday rotator for High peak and high average power laser. As the first demonstration of Faraday effect in a TGG ceramics, its Verdet constant at 1053 nm is evaluated to be 36.4 rad/Tm at room temperature which is same as that of the single crystal. In addition, the temperature dependence of Verdet constant is obtained experimentally. At liquid helium temperature, it is 87 times greater than that at room temperature. The measured thermal conductivity was corresponding to TGG single crystal.

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