APDs are photodiodes with internal gain produced by the application of a reverse voltage. They have a higher signal-to-noise ratio (SNR) than PIN photodiodes, as well as fast time response, low dark current, and high sensitivity. Spectral response range is typically within 200 - 1150 nm.
Silicon APDs provide high sensitivity ranging from UV to NIR for low light detection at high speeds.
InGaAs APDs provide high near-infrared sensitivity for low light detection at high speeds.
Our modules take the complexity out of operating an APD with a low-noise amplifier circuit, high voltage power supply, and temperature compensation circuit integrated into a compact solution.
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