LBTEK's avalanche photodetector series covers silicon and indium gallium arsenide types, offering both adjustable gain and fixed gain options. They are suitable for low-light power level applications and can precisely meet various low-light detection needs. The adjustable gain series allows users to adjust the reverse bias voltage across the diode via a rotary knob on the side of the housing, thereby changing the gain level. Using a BNC-SMA signal cable, connect the photodetector's signal interface to downstream acquisition devices such as oscilloscopes. The detector's mechanical housing features SM05 internal threads and SM1 external threads on the surface, along with M4 threaded holes at the bottom for easy mounting onto posts. Each photodetector comes with a power supply.

    Note: This product series includes a sleeve with SM1 internal threads, which can be removed as needed during use (both the STEP and PDF files include this sleeve).

   The appearance of the fixed gain models has been updated, and both old and new appearances may be shipped randomly.

    LBTEK's fiber-optic avalanche photodetector series covers silicon and indium gallium arsenide types, suitable for low optical power level applications in fiber optic paths. Connect the photodetector's signal interface to downstream acquisition equipment such as oscilloscopes via BNC-SMA signal cables. The mechanical housing of the detector features an M4 threaded hole at the bottom for easy mounting onto rods. Each photodetector comes with a power supply.

    Due to product appearance updates, old and new appearances will be shipped randomly

The LBTEK Avalanche Photodetector PD-SAF-400A combines a high-sensitivity Si avalanche photodiode, capable of detecting optical signals from DC to 385 MHz. The silicon avalanche photodetector features a photosensitive detection area with a diameter of 0.2 mm and achieves a peak spectral photoelectric conversion gain of up to 4.2×10e5 V/W. Additionally, the silicon avalanche photodetector allows continuous adjustment of the APD's M multiplication factor, enabling a gain adjustment range of 10-100 times to meet the vast majority of customer testing requirements. Furthermore, the silicon avalanche photodetector includes a special control circuit for temperature compensation of the M factor, ensuring gain temperature stability ≤1.5%. Note: The avalanche photodetector does not support hot-plugging; the detector must be connected to the power supply before powering on.