Thin film retardation plates fabricated by oblique depositions and their applications to LiNbO3-based sensors

Yasuhiko Takeda; Tadashi Ichikawa; Tomoyoshi Motohiro; Hiroshi Ito

doi:10.1117/12.347709

7 May 1999 Thin film retardation plates fabricated by oblique depositions and their applications to LiNbO₃-based sensors

Yasuhiko Takeda, Tadashi Ichikawa, Tomoyoshi Motohiro, Hiroshi Ito

Author Affiliations +

Proceedings Volume 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99); (1999) https://doi.org/10.1117/12.347709
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '99), 1999, Yokohama, Japan

Abstract

We realized an optical AC voltage sensor using a Ti:LiNbO₃ waveguide electro-optic modulator with a sensitivity independent on the polarization state of the incident light. The polarization independence was attained by adopting a retroreflective type modulator with a (lambda) /4 plate on the reflecting end fabricated by depositing Ta₂O₅ alternatively from two opposite oblique directions.

Citation Download Citation

Yasuhiko Takeda, Tadashi Ichikawa, Tomoyoshi Motohiro, and Hiroshi Ito "Thin film retardation plates fabricated by oblique depositions and their applications to LiNbO₃-based sensors", Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); https://doi.org/10.1117/12.347709

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