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Small short-wavelength optical isolator using Tb3+-rich magneto-optical glass
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Paper Abstract

An optical isolator using Tb3+-rich magneto-optical glass was demonstrated. We successfully developed a glass having a large Faraday effect, whose Verdet constant was 60 rad/T m at 1064 nm, ~1.6 times that of Tb3Ga5O12 crystal (TGG). The glass was also highly transparent in the visible―near-IR region. An optical isolator operating at a wavelength of 1064 nm was developed using the glass, whose isolation was over 33 dB and insertion loss was under 0.2 dB. The size of the magnet could be reduced, and consequently, a small (51 × 40 × 40 mm3) optical isolator was realized.

Paper Details

Date Published: 27 February 2019
PDF: 7 pages
Proc. SPIE 10914, Optical Components and Materials XVI, 1091412 (27 February 2019); doi: 10.1117/12.2503595
Show Author Affiliations
Futoshi Suzuki, Nippon Electric Glass Co., Ltd. (Japan)
Naoki Fujita, Nippon Electric Glass Co., Ltd. (Japan)
Fumio Sato, Nippon Electric Glass Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 10914:
Optical Components and Materials XVI
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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