The Hamamatsu Photonics InGaAs APDs used for distance measurement, optical communication, and low-light-level detection. The G8931-04 provides high-speed response at 2.5 Gbps, which is necessary for SONET, G/GE-PON, and other optical trunk lines. The G8931-20 features a large ϕ0.2 mm photosensitive area. High-speed response
Low dark current
Low capacitance
High sensitivity