Effect of Electrical Filtering on Level Dependent ASE Noise
arXiv:1605.03033 · doi:10.1109/JPHOT.2017.2785287
Abstract
We derive an analytical model describing the effect of filtering on amplified spontaneous emission noise during or after opto-electronic conversion. In particular, we show that electrical filtering results in a further reduction of the signal quality factor associated with an effective increase of the noise levels and can lead to counter-intuitive dependencies of the measured signal quality on the characteristics of the test setup. Closed form equations are compared with numerical models and experiments, showing excellent agreement.