Title :
Differential frequency shift of picosecond pulse four-wave mixing in semiconductor optical amplifiers
Author :
Tang, J.M. ; Shore, K.A.
Author_Institution :
Sch. of Electron. Eng. & Comput. Syst., Univ. of Wales, Bangor, UK
Abstract :
A numerical investigation of picosecond optical pulse four-wave mixing in semiconductor optical amplifiers has been undertaken to evaluate differential frequency shifting. This phenomenon appears as a shift of the central frequencies of the pump, probe and conjugate pulses during the mixing processes. The differential frequency shift is highly dependent upon the probe-pump frequency detuning and becomes more significant for shorter pulsewidths and higher pulse energies. It is also established that the differential frequency shifts between the pump, probe and conjugate pulses are different.
Keywords :
high-speed optical techniques; multiwave mixing; optical frequency conversion; optical phase conjugation; optical wavelength conversion; semiconductor optical amplifiers; conjugate pulses; differential frequency shift; differential frequency shifting; differential frequency shifts; frequency conversion; mixing processes; optical phase conjugate; picosecond optical pulse four-wave mixing; picosecond pulse four-wave mixing; probe pulses; probe-pump frequency detuning; pulse energies; pulsewidths; pump pulses; semiconductor optical amplifiers; Four-wave mixing; Frequency; Nonlinear optics; Optical filters; Optical mixing; Optical pulses; Optical wavelength conversion; Probes; Pulse amplifiers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
