Simplified Model for Estimating the Cross-Polarization Modulation in a Bulk Semiconductor Optical Amplifier

All‐optical binary‐to‐octal encoder based on a semiconductor optical amplifier: Application to eight‐level amplitude‐shift keying signaling

“…As is known, the XGM and XPolM effects change the amplitude and polarization state, respectively, of a continuous wave (CW) beam as a function of the instantaneous optical power generated by one or several control signals introduced simultaneously with it into a SOA [12, 13]. Based on these principles, an all‐optical encoder to perform a binary‐to‐octal amplitude shift keying format conversion was carried out in this work.…”

“…In order to determine the conditions allowing to obtain an encoder with a linear transfer function, a model by sections that is capable of describing the XPolM and XGM in a bulk‐SOA was used [13]. The model is based on the density‐matrix formalism and takes into account the non‐homogeneous longitudinal distributions of the carrier density ( N ) and energy density of the carriers ( U ) in the SOA active region.…”

Study of the dynamics of the nonlinear polarization rotation in a semiconductor optical amplifier

“…1; details of its derivation and a general procedure for applying the effective index method can be found in [5] where in addition the SOA employed was similar to that used in this work. Finally, the angular displacement (�t't) , at the Poincare Sphere, can be represented by:…”