Development of the world’s first high-speed integrated photodetector that simultaneously converts many optical signals to electric signals
NICT Network System Laboratory, in collaboration with Professor Tetsuya Kawanishi of Waseda University School of Science and Engineering, developed a high-speed integrated photodetector that simultaneously receives a large number of optical signals and converts them to electrical signals at high speed. This device integrates 32 light receiving units in about 0.1 mm 2, collectively receives multi-channel optical signals in optical communication and converts them into high-speed electrical signals of 10 GHz or more for each channel.
With network trunk lines and data centers, it is necessary to process a tremendously growing amount of information with limited space and power. With the development of this device, it is possible to drastically reduce the size and power consumption of large-capacity optical communication devices by concentrating a large number of optical receivers. Furthermore, the feature that can process multi-channel optical signals of this element at high speed is expected to be applied to image sensors, laser ranging, and the like. NICT – National Institute of Information and Communications Technology