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 was achieved.
The efficiency ([eta]) of
four-wave mixing is given by [3]
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 [14], 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 process.