Parametric amplifiers contain highly non-linear undoped silica fibres, with very small cores, in order to exploit four-wave mixing
, a standard non-linearity in optical fibres that limits transmission capacity.
In this paper, we manage the investigation of self-stage nonlinear impact and four-wave mixing
impact in the optical system.
Madden, "Tunability of polarization-insensitive wavelength converters based on four-wave mixing
in semiconductor optical amplifiers," Journal of Lightwave Technology, vol.
Leuthold, "All-optical XOR operation of 40 Gbit/s phase-shift-keyed data using four-wave mixing
in semiconductor optical amplifier," IEEE Electronics Letters, vol.
et al., "Thermal grating and broadband degenerate four-wave mixing
spectroscopy of OH in high-pressure flames," Appl.
Hence, in this paper, with advantages of nonlinear optics effect of intensity modulator (IM) followed by phase modulator (PM) and FWM caused by two laser sources over 14 m of photonic crystal fiber cascaded four-wave mixing
The efficiency ([eta]) of four-wave mixing
is given by 
Zhang, "Experimental demonstration on 40 Gbit/s all-optical multicasting logic XOR gate for NRZ-DPSK signals using four-wave mixing
in highly nonlinear fiber," Optics Communications, vol.
Wise, "Fiber four-wave mixing
source for coherent anti-Stokes Raman scattering microscopy," Opt.
In recent years, optical logic gates based on several different schemes, such as dual semiconductor optical amplifier (SOA) Mach-Zehnder interferometer (MZI) [4-9], semiconductor laser amplifier (SLA) loop mirror [10,11], ultrafast nonlinear interferometers [12,13], and four-wave mixing
process in SOA , are demonstrated and reported.
(31,32) In the CARS process, a pump field ([[omega].sub.p]), a Stokes field ([[omega].sub.s]), and a probe field ([[omega].sub.p], typically the same as [[omega].sub.p]) interact with the samples through a four-wave mixing