Four-wave mixing in traveling-wave semiconductor amplifiers

Wavelength conversion for WDM communication systems using four-wave mixing in semiconductor optical amplifiers

“…This wavelength dependence can be understood by modeling the various ultrafast dynamics that contribute to the nonlinear susceptibility function of the amplifier. In particular, the converted signal power at the SOA output is given approximately by [11]- [13], [35] (1) where and are the unconverted signal and the pump at the SOA input, respectively, is the detuning frequency, and , , and are the magnitudes, phases and time constants associated with the contributing ultrafast mechanisms where (carrier density modulation), (carrier heating) and (spectral-hole burning). Many of these parameters will in general depend on the overall saturation level of the SOA.…”

Theory of nondegenerate four-wave mixing between pulses in a semiconductor waveguide

“…Several papers [9]- [14] have already been devoted to the theoretical analysis of FWM in semiconductor optical amplifiers. Good agreement between experiment and theory has been demonstrated in the case of FWM among CW beams, both in terms of the detuning dependence [7], [8] and the saturation behavior [15].…”

Synthesis of optical standard frequencies in the S, C and L telecommunication bands by use of four-wave mixing in semiconductor optical amplifiers

“…where α is Henry's linewidth enhancement factor, G is the saturated gain at position z, A * 2 (0) is the probe amplitude at z = 0 and G , F α , are parameters defined in [6]. Figure 1 shows the comparison between the efficiency corresponding to the four-wave mixing product generated in a SOA obtained by (2) and the one obtained in a fibre optic with zero-dispersion at 1550 nm given by [2,3].…”