Thorlabs PDA36A Si Switchable Gain Detector: Difference between revisions

Latest revision as of 21:35, 4 January 2018

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).

@@ Line 1: / Line 1: @@
+[[File:PD A36A.jpg|thumb|400px|]]
 ==Files==
 [https://wiki.physics.wisc.edu/yavuz/images/5/59/PDA36A-Manual.pdf User Manual]
-[[File:PD A36A.jpg|thumb|400px|]]
 ==Notes==
+*To determine laser power:
+::<math> P=V/((Amps/W) * (V/Amps)) </math>
+::With <math>V</math> as the measured voltage from the photodetector, and <math>Amps/W</math> and <math>V/Amp</math> 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.
+*[https://wiki.physics.wisc.edu/yavuz/images/5/5b/Photodiode_%28Thorlabs_PDA36A%29_Calibration_for_all_Gains.pdf Voltage to Power Calibration]