Journal
ACS PHOTONICS
Volume 1, Issue 9, Pages 781-784Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ph5001605
Keywords
graphene; photodetector; silicon photonic; dark current; data communication; high frequency
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Funding
- German Science Foundation DFG [SPP 1459]
- European Commission [285275, 604391]
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Optical data links are the backbone of today's telecommunication infrastructure. The integration of electronic and optic components on one chip is one of the most attractive routes to further increase the system performance. Here, we present the fabrication of photodetectors based on CVD-grown graphene on silicon photonic waveguides. The devices operate bias-free in the C-band at 1550 nm and show an extrinsic -3 dB bandwidth of 41 GHz. We demonstrate that these detectors work at data rates up to 50 GBit/s with excellent signal integrity.
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