Developing InP/InGaAs detectors for laser radar systems

Describes efforts at DSTO to examine the application of InP/InGaAs array technology to laser radar sensors. The advantages of InP/InGaAs photodiode technology are its high sensitivity to the "eye-safe" laser wavelength, its high frequency operation and the maturity of the basic technology. A hybrid approach is taken in this study to fully optimise the photodetector and read-out modules in order to develop a real-time imaging laser radar system.