How can I improve the current output at PD?

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SUMMARY

The discussion centers on improving the output current from a photodiode (PD) in an experiment using a 4.5mW infrared laser (OPV382) and a SFH206 photodiode. The measured current is only 10µA, significantly lower than the expected 100µA. Key factors affecting this output include the spectral sensitivity of the SFH206, which is only 0.06A/W for wavelengths between 800 to 1100 nm, and the recommended maximum irradiance of 0.5 mW/cm². The participants emphasize the importance of consulting the datasheets for both the photodiode and the laser to ensure optimal performance.

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Electronics engineers, researchers in optical communication, and anyone involved in photodiode applications seeking to enhance current output and performance.

thomas_n
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Hi All,
I am doing the experiment with photodiode and laser light.
The laser source I used is 4.5mW infrared laser with OPV382 and the PD used is
SFH206 with 0.6A/W intensity. I put the the laser source and the PD at 10cm apart. Then 1ohm series resistor is put at PD circut to measure the current.
The current measured is only 10uA.
My question is
(1) does that 10uA current make sense? I am expecting minimum 100uA with that light source and that distance.
(2) How can I improve the current output at PD?
Thanks,
Thomas
 
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