Noiseless InGaAs APDs have use in gigabit-speed optical communications
The Aura family of 1550-nm InGaAs APDs feature lower capacitance at 0.15 to 0.4 pF, increasing the cut-off frequency to 3.5 GHz. With a damage threshold of 30 MW/cm2, they are suited for gigabit-speed optical communications, including free-space applications and optical time-domain reflectometry (OTDR) test equipment.
Phlux Technology
Sheffield, U.K.