Thorlabs PDA36A Si Switchable Gain Detector: Difference between revisions
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*To determine laser power: |
*To determine laser power: |
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<math> P=V/((Amps/W) * (V/Amps)) </math> |
::<math> P=V/((Amps/W) * (V/Amps)) </math> |
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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). |
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*Response is consistent from photodiode to photodiode. |
*Response is consistent from photodiode to photodiode. |
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Latest revision as of 21:35, 4 January 2018
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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.