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photodetection


johnson noise of a photodetector


Caution
Fill in all cells except one.
Choose all parameters unit.
All parameters are positive.
This calculation is valid only when no reverse voltage is applied on the photodetector.

ParameterValueunit
T
dF
Rsh
dIj
johnson noise of a photodetector
T : temperature of the photodetector dF : photodetector bandwidth Rsh : shunt resistance dIj : Johnson noise

Note
This calculation page can not detect all unrealistic inputs.



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