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27 February 2019 Small short-wavelength optical isolator using Tb3+-rich magneto-optical glass
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Proceedings Volume 10914, Optical Components and Materials XVI; 1091412 (2019) https://doi.org/10.1117/12.2503595
Event: SPIE OPTO, 2019, San Francisco, California, United States
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.
Conference Presentation
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Futoshi Suzuki, Naoki Fujita, and Fumio Sato "Small short-wavelength optical isolator using Tb3+-rich magneto-optical glass", Proc. SPIE 10914, Optical Components and Materials XVI, 1091412 (27 February 2019); https://doi.org/10.1117/12.2503595
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