Thorlabs PDA36A Si Switchable Gain Detector

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User Manual

Notes

-To determine laser power:

$P=V/((Amps/W)*(V/Amps))$

With $V$ as the measured voltage from the photodetector, and $Amps/W$ and $V/Amp$ as two conversion factors depending on the wavelength of the laser and the gain setting of the    detector respectively (page 9 and 11 in user manual).

-Response is consistent from photodiode to photodiode.

-Zero point can shift a few tenths of a millivolt depending on the temperature.

Voltage to Power Calibration