High sensitivity optical receivers for 1.0-1.4 µm fiber-optic systems

The performance of high-speed, high-quantum-efficiency GaAlAsSb avalanche photodetectors suitable for a
1.0-1.4 \mu
m high-performance fiber-optical communication system is described. The incorporation of these APD's with state-of-the-art GaAs FET electronics can lead to hybrid integrated optical receivers with 10-20 times better sensitivity at a 100-MHz bandwidth than is available with germanium APD's.