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InGaAs avalanche photodetector

InGaAs avalanche photodetector Россия

Key Advantage
1. High gain
2. High sensitivity
3. Low noise equivalent power
4. Strong light injection protection function
5. Optional light incident mode

Typical Application
lidar
Laser Ranging
Laser communication
OTDR

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This product is a compact near-infrared avalanche photodetector. The core device adopts InGaAs/InP APD with domestic independent intellectual property rights, which has the characteristics of high gain, high sensitivity and low noise. It can provide a cost-effective solution for near-infrared weak light detection and short pulse signal measurement, and is widely used in laser communication, laser radar and other fields.
This product works in linear mode, integrates a low-noise broadband transimpedance amplifier, can achieve a maximum conversion gain of 5.2×106v/w, and supports gain adjustment, and uses a temperature compensation circuit to achieve temperature stability control of the multiplication factor. The diameter of the photosensitive surface is up to 200um, and the noise equivalent power is as low as 0.35nW under the working bandwidth of 10MHz. It supports free space coupling and fiber coupling. At the same time, the internal integrated strong light injection protection function makes the product have higher environmental adaptability.

Parameters&Index
Technical Parameters Technical Index
Product Model QCD-200A
Response Wavelength 900nm-1700nm
Photosensitive Surface Diameter 200um
Maximum Conversion Gain @(RL=50Ω) 5.2×10V/W
Maximum Output Voltage @(RL=50Ω) 2.1V
Output Bandwidth DC~10MHz
Noise Equivalent Power(DC-10MHz) 0.12pW/Hz½
Total Noise Power 0.35nw
Coupling Method free-space coupling/fiber-optic coupling
Output DC Bias
Input Voltage 12v
Size 60mm*65.6mm*22mm
Photosensitive surface size can be customized
Output bandwidth can be customized

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