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−1 V bias 67 GHz bandwidth Si-contacted germanium waveguide p-i-n photodetector for optical links at 56 Gbps and beyond

2016; Optica Publishing Group; Volume: 24; Issue: 5 Linguagem: Inglês

10.1364/oe.24.004622

1094-4087

Hong Tao Chen, Peter Verheyen, Peter De Heyn, Guy Lepage, Jeroen De Coster, Sadhishkumar Balakrishnan, P. Absil, Weiming Yao, L. Shen, Günther Roelkens, Joris Van Campenhout,

Optical Network Technologies

We demonstrate a 67 GHz bandwidth silicon-contacted germanium waveguide p-i-n photodetector operating at -1 V with 6.8 fF capacitance. The dark current is below 4 nA. The responsivity is 0.74 A/W at 1550 nm and 0.93 A/W at 1310 nm wavelength. 56 Gbps on-off-keying data reception is demonstrated with clear open eye diagrams in both the C-band and O-band.