A Novel Spot-Size Converter with Asymmetric Taper for Deep-Ridge Waveguide Devices

Takuo Hiratani,Naoya Kono,Tomokazu Katsuyama,Ryuji Yamabi,Yuhki Itoh,Masataka Watanabe,Mitsuru Ekawa,Hajime Shoji

2019 24th Microoptics Conference (MOC)（2019）

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摘要

A novel spot-size converter with a buried asymmetric taper which enables a 0 μm-wide tip is proposed for high coupling efficiency between a deep-ridge waveguide device and an optical fiber. As a result of measurement, fabricated devices showed a very low mode conversion and coupling loss of 0.6 dB/facet.

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关键词

spot-size converter,deep-ridge waveguide device,buried asymmetric taper,high coupling efficiency,very low mode conversion,coupling loss,optical fiber

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