Thorlabs PDA36A Si Switchable Gain Detector

Files

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