Ladar receiver

A method of operating a laser receiver, comprising:

• at a photodetector, generating a photocurrent in response to incident light, the photodetector being associated with a capacitance and configured to operate at a bias voltage level above ground, wherein a resonant circuit is formed in accordance with the photodetector capacitance and an inductive coupling of the photodetector to ground, wherein the inductive coupling of the photodetector to ground is minimized using multiple ground connections of the photodetector when mounted on a printed circuit board (PCB);
• at a first amplifier including a first Enhancement mode Pseudomorphic High Electron Mobility Transistor (E-PHEMT), amplifying the photocurrent received from the photodetector to produce a first output signal, the first transistor comprising a gate coupled to receive the photocurrent, a source coupled to ground, and a drain coupled to a second bias voltage via an inductor and coupled to the photodetector via a feedback circuit comprising at least a capacitance, wherein the feedback circuit operates to limit a reduction in first amplifier bandwidth caused by the resonant circuit;
• at a second amplifier including a second E-PHEMT, presenting a high impedance load to the first output signal and responsively generate a second output signal.