New Photodiodes for Long-Wavelength LiDAR

Albis presents its new highly sensitive APD chip APD05C1. This linear mode APD is optimized for long-wavelength, eye safe LiDAR applications and comes with low dark current and low excess noise. Thanks to the low device capacitance, the APD can be operated in pulsed time-of-flight (TOF) systems as well as offers the required bandwidth and linearity to pursue formats such as frequency modulated continuous wave (FMCW).

The APD operates in the wavelength range from 990nm up to 1650nm and has an exceptionally high responsivity of 1.1 A/W. The backside substrate acts as an integrated sunlight filter, absorbing parasitic signals in the visible spectrum without increasing noise. The integrated backside lens focuses the incoming photons on the topside detecting area enabling higher fill factor and coupling efficiency.