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Conferences > ACPC > 2015 > ASu5I > ASu5I.5

Design of Travelling-wave Photodetectors Impedance-matched over 135-GHz Bandwidth

Pengfei Xu, Yujie Chen, Jie Liu, Yanfeng Zhang, Guoxuan Zhu, Qingsheng Xiao, Bingchi Liu, Hui Chen, and Siyuan Yu

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Abstract

Electrical design for an unloaded transmission line of a travelling-wave photodetector is performed, enabling the 50-Ω impedance matching in a large frequency range from 1 to 135 GHz. Considering the velocity match of the optical waveguide and the electrical transmission line, a coplanar waveguide transmission line with adequately large gap width is adopted for extending the optical path of the waveguide.

© 2015 Optical Society of America

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