Later silicon-BP hybrid waveguide PDs were realized for the wavelength band of 2 μm as illustrated in Fig 3j71 These PDs performed responsivities of 21–307 mA W−1 at 04 V bias voltage and bandwidths o

Subsequently, silicon-BP hybrid waveguide photodetectors (PDs) were developed for the wavelength range of 2 μm, as depicted in Figure 3j. These PDs exhibited responsivities ranging from 21 mA W-1 to 307 mA W-1 at a bias voltage of 0.4 V and bandwidths of 0.5 GHz to 1.33 GHz. Furthermore, successful demonstration of data transmission with a bit rate of 4.0 Gbit s-1 was achieved.