Photodetector with wavelength @ 780nm and 1560nm

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Photodetector with wavelength @ 780nm and 1560nm

Team members: Sunke Lan

To design photodetector as power monitor with power within 10mW.

Project Outline

1. Objective

  • Try to design photodetector for 780nm and 1560nm

2. Components

  • Photodiodes (S5917, G12180-010A), BNC test boards, PCB test boards, op-amp (OP27G) (for target 1)


3. Test circuits

  • 3.1.1 Basic current-voltage transferring circuit for S5971
Test Circuit for 780nm Photodetector

Based on the reference circuit, we changed the biase voltage of photodiode to 1V, and used op-amp OP27E to do the current-voltage transferring.

the side with PD
the side with basic lump elements

4. Testing and Results

4.1 Test Circuit

4.2 Data and Analysis

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