Indium gallium arsenide InGaAs four quadrant detection and receiving module 1550nm

GD4516YB is a high-sensitivity and large photosensitive element four quadrant photoelectric detection module, which adopts InGaAs four quadrant APD chip and low-noise transimpedance amplifier mixed integration.

Silicon Si four quadrant detector with large photosensitive surface 400-1100nm (photosensitive surface diameter 10/16mm)

The device is an N-type silicon quadrant detector, and when the radiation flux of light to each quadrant of the device is equal, the output photocurrent of each quadrant is equal. When the target deviates, the change in radiation flux between quadrants causes changes in the output photocurrent of each quadrant, which can measure the orientation of the object and play a role in tracking and guidance.