20 November 2012 A compact evanescently-coupled germanium PIN waveguide photodetector
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A compact 1.6×10μm2 germanium pin waveguide photodetector was demonstrated on a Silicon-on-Insulator substrate. The dark current of the photodetector was measured to be 0.66μA at -1V bias voltage, which is much lower than recently reported. The photodetector exhibited a 3-dB bandwidth of 20GHz at the wavelength of 1.55μm. A clear open eye diagram at 10Gb/s was also obtained.
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Zhijuan Tu, Zhijuan Tu, Kaibo Liu, Kaibo Liu, Huaxiang Yi, Huaxiang Yi, Runxi Zhou, Runxi Zhou, Xingjun Wang, Xingjun Wang, Zhiping Zhou, Zhiping Zhou, Zhangyuan Chen, Zhangyuan Chen, "A compact evanescently-coupled germanium PIN waveguide photodetector", Proc. SPIE 8564, Nanophotonics and Micro/Nano Optics, 85640X (20 November 2012); doi: 10.1117/12.2001221; https://doi.org/10.1117/12.2001221

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