High performance silicon waveguide germanium photodetector

Li Chong^a),^b)†, Xue Chun-Lai^a), Li Ya-Ming^a), Li Chuan-Bo^a), Cheng Bu-Wen^a), Wang Qi-Ming^a)

The current–voltage characteristics of the device without illumination and with laser radiation. (a) The devices with different widths, (b) the devices with different lengths.