A theoretical model that allows numerical simulations of optical bistability phenomena in CW-pumped erbium-doped fiber lasers is presented. Results the match correctly with previous experimental data. In order to simulate this phenomenon, population inversion and powers longitudinal distributions along active have been considered. If long enough, it has found transition between non-lasing lasin...

We present a detailed study of electrical and optical generated free carrier on the spectral characteristics silicon microring modulator. The distortion due to thermal carriers is presented, mechanism for mitigation also presented. observed that two-photon induced nonlinearity could be addressed by operating modulator at suitable bias points. Furthermore, applying small-signal drive can restore...