APD Photodetector Modules

High-sensitivity avalanche photodetector modules for low-light measurement — ideal for fiber sensing receivers, optical research, and precision instrumentation.

The APD modules are based on low-noise avalanche photodiodes made of InGaAs with a built-in pre-amplifier and high voltage supply.A temperature compensation function allows the APD to be operated at constant gain across a wide operating temperature range.
DTS-APD Dual Port APD Receiver Module For Raman DTS
APD20 APD20 Fiber-Coupled APD Amplified Photodetector (400-1700nm, 10M-400M)
APD430 APD430 Free-Space APD Photodetector (Si/InGaAs) - 10M-400MHz | Thorlabs Alternative
The APD12703 series photodetector uses a 3mm diameter large target APD photodetector with very high gain and UV enhancement at 355nm, very suitable for fluorescence detection and other scenarios.
APD12703 300-1100nm UV-enhanced Silicon Avalanche Photodetector
APD210 photodetector module up to 1.8G bandwidth, while still having a very high gain (sensitivity), the module uses space optical input, suitable for scientific research field of space optical communication experiments, space optical laser detection and other scenarios.
APD210 APD210 APD photodetector for free space optical communication 1Ghz
The detector is based on a silicon-based avalanche photodiode with 1064 nm enhanced response and high gain response for atmospheric aerosol radar
APD1064 1064nm APD avalanche detector for lidar, atmospheric aerosol detection
APD12702 Series:‌ Temperature compensation, UV-enhanced sensitivity, 3mm photosensitive area. Ideal for low-light signals, fluorescence measurement, and chemical analysis.
APD12702 ‌300-1000nm UV-enhanced Free-space Avalanche Photodetector
APD1064T APD1064T Avalanche Photodetector 1064nm
APD430T temp-compensated APDs include Si & InGaAs types, 10–400MHz bandwidth, optional adjustable gain, ideal for LiDAR and weak light detection.
APD430T APD430T Avalanche Photodetector
4-Quadrant Photodetector QPD100, suitable for laser APT tracking systems, lidar, maritime optical communications, laser guidance, beam stabilization systems, sun tracking, and optical alignment of acousto-optic modulators, among others
QPD100 QPD100 Four-Quadrant Photodetector