How can I improve the current output at PD?

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The discussion centers on improving the output of a photodiode (PD) when using a 4.5mW infrared laser source. The user reports measuring only 10uA of current at a distance of 10cm, while expecting at least 100uA. Key points include the understanding that the PD's sensitivity of 0.6A/W applies only to light at 950nm, and for wavelengths between 800 to 1100nm, the sensitivity drops significantly. The user is advised to ensure they do not exceed the recommended radiant power density and to consult the data sheets for both the photodiode and laser source for optimal performance. The conversation highlights the importance of matching the light source and PD specifications for better output.
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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