What are the classifications of the difference in pulse amplitude between various noise pulses and optoelectronic signals?

* Question

* Answer

1) The noise pulse is smaller than the optical signal pulse: the poles are hot electron emission at each level.

2) The noise pulse is larger than the optical signal pulse: glass emission, feedback ion, cosmic line.

3) The noise pulse is equal to the optical signal pulse: photocathode thermal emission, feedback photon.