High performance waveguide-integrated germanium photodetectors

ZhiXiong Xiao; JunBo Feng; ZhiPeng Hu

doi:10.1117/12.2586890

12 March 2021 High performance waveguide-integrated germanium photodetectors

ZhiXiong Xiao, JunBo Feng, ZhiPeng Hu

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 1176342 (2021) https://doi.org/10.1117/12.2586890
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

We report high-performance waveguide-integrated germanium photodetectors. The responsivity above 0.95A/W and dark current of 2.9nA were demonstrated with the bias voltage of -1V and input optical wavelength of 1310nm. The 3-dB bandwidth above 67GHz demonstrated due to radio-frequency (RF) resonance effect. The RF resonance is explained by the transfer function of parasitic circuit based on the equivalent circuit model of photodetector. In addition, clear open eye diagrams at 50Gb/s are also shown.

Citation Download Citation

ZhiXiong Xiao, JunBo Feng, and ZhiPeng Hu "High performance waveguide-integrated germanium photodetectors", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 1176342 (12 March 2021); https://doi.org/10.1117/12.2586890

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