For applications that require highest sensitivity. The APD Avalanche photodiodes can provide an extremely sensitive alternative to traditional PIN photodiodes. The APD is sensitive and fast enough for the characterization of, for example, pulsed solid-state lasers on the nanosecond scale. It maintains high gain stability over a 10°C to 40°C temperature range by utilizing a temperature compensation circuit which adjusts the ~150 VDC bias to ensure operation near the breakdown voltage.

Features
* High speed response: Bandwidth 1MHz-1GHz
* APD-210: spectral range of 400 nm to 1000 nm
* APD-310: spectral range of 850 nm-1650 nm
* Temperature independent gain from 10-40 °C

Applications
* Detection of fast laser pulses
* Detection of low light level signals
* Detection of beat signals of low level inputs