Measuement power laser using solar cell

[DDnoob]

I measure power of a laser by using a solar cell. But, the current and voltgate from the solar cell are very small. So, can i add a amplicifier circuit or sth ?

 

[Cyparagon]

No. Not really. The response of a photovoltaic is not linear with respect to power and the response also varies drastically between measured wavelengths, and even between different photovoltaic designs. The output is also sensitive to angle of incidence.

You won't get consistent results.

 

[DDnoob]

No. Not really. The response of a photovoltaic is not linear with respect to power and the response also varies drastically between measured wavelengths, and even between different photovoltaic designs. The output is also sensitive to angle of incidence.

You won't get consistent results.

Thanks, you can give me a giude about using solar cell? i think it a cheap LPM what i can do

 

[Things]

You can't, is what he was saying. The cheap ones use thermoelectric/peltier devices with a coating, but even those need calibration. Unless you have a LPM to calibrate against, it won't read accurately.

 

[ARG]

Thanks, you can give me a giude about using solar cell? i think it a cheap LPM what i can do

Did you even read his post...?

Don't use a solar cell, as things said, use a TEC. See: http://laserpointerforums.com/f42/diy-thermal-lpm-under-50-a-51129.html#post704325