Thorlabs PDA36A Si Switchable Gain Detector: Difference between revisions

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-To determine laser power:
-To determine laser power:


<math> P=V/((Amps/W) * (V/Amps)) </math>
<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).
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.
-Response is consistent from photodiode to photodiode.

Revision as of 21:34, 4 January 2018

PD A36A.jpg

Files

User Manual

Notes

-To determine laser power:

[math]\displaystyle{ P=V/((Amps/W) * (V/Amps)) }[/math]

With [math]\displaystyle{ V }[/math] as the measured voltage from the photodetector, and [math]\displaystyle{ Amps/W }[/math] and [math]\displaystyle{ 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.

Voltage to Power Calibration

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