Germanium photodetector with 60 GHz bandwidth using inductive gain peaking

Germanium photodetector with 60 GHz bandwidth using inductive gain peaking

Optics Express

10.1364/OE.21.028387

http://www.opticsinfobase.org/abstract.cfm?URI=oe-21-23-28387

Ari Novack, Mike Gould, Yisu Yang, Zhe Xuan, Matthew Streshinsky, Yang Liu, Giovanni Capellini, Andy Eu-Jin Lim, Guo-Qiang Lo, Tom Baehr-Jones, Michael Hochberg

11 November 2013

Germanium-on-silicon photodetectors have been heavily investigated in recent years as a key component of CMOS-compatible integrated photonics platforms. It has previously been shown that detector bandwidths could theoretically be greatly increased with the incorporation of a carefully chosen inductor and capacitor in the photodetector circuit. Here, we show the experimental results of such a circuit that doubles the detector 3dB bandwidth to 60 GHz. These results suggest that gain peaking is a generally applicable tool for increasing detector bandwidth in practical photonics systems without requiring the difficult process of lowering detector capacitance. © 2013 Optical Society of America

PublisherCopyrights

https://oar.a-star.edu.sg/communities-collections/articles/11731

1094-4087

Institute of Microelectronics