Fiber Coupled High-Speed InGaAs APD Photodiode

SKU: FCAD

The Fiber Coupled High-Speed InGaAs APD Photodiode is based on an InGaAs Avalanche photodiode and provides fast pulse response up to 10Gb/s NRZ rates. In an APD, the absorbed photons create electron-hole pairs, which are then accelerated by a strong electric field in the multiplication region under a higher bias voltage. This acceleration causes secondary ionizations, leading to an avalanche effect, which amplifies the signal. Compared with PIN, APD photodetectors have higher sensitivity and gain with a much higher output current for the same incident light power. However, APD has higher noise than PIN photodetectors. APD photodetectors are suited to applications requiring high sensitivity and detection of weak signals, such as LIDAR and certain types of spectroscopy. Our design minimizes component assembly costs and module footprint while increasing stability over wide temperature and wavelength ranges.