Optical mode multiplexer using LiNbO3 asymmetric directional coupler enabling voltage control for phase-matching condition

Shotaro YASUMORI; Seiya MORIKAWA; Takanori SATO; Tadashi KAWAI; Akira ENOKIHARA; Shinya NAKAJIMA; Kouichi AKAHANE

doi:10.1587/transele.2023ECS6011

This article has now been updated. Please use the final version.

Optical mode multiplexer using LiNbO₃ asymmetric directional coupler enabling voltage control for phase-matching condition

Shotaro YASUMORI, Seiya MORIKAWA, Takanori SATO, Tadashi KAWAI, Akira ENOKIHARA, Shinya NAKAJIMA, Kouichi AKAHANE

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Keywords: Optical mode multiplexer, Asymmetric directional coupler, LiNbO₃ waveguide, Phase-matching condition

JOURNAL FREE ACCESS Advance online publication

Article ID: 2023ECS6011

DOI https://doi.org/10.1587/transele.2023ECS6011

The final version of this article is now available: Vol. E107.C (2024), No. 5 pp. 146-149

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Abstract

An optical mode multiplexerwas newly designed and fabricated using LiNbO₃ waveguides. The multiplexer consists of an asymmetric directional coupler capable of achieving the phase-matching condition by the voltage adjustment. The mode conversion efficiency between TM₀ and TM₁ modes was quantitatively measured to be 0.86 at maximum.

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