of 1.89 ps/(nmgkm) and a zero dispersion wavelength
at 1517 nm. The DSF acts as a soliton converter that
reshapes and compresses the input pulse to a sech-like
pulse. The pulse train is then amplified again and
launched into a CDPF chain, which acts as an adiabatic
soliton compressor. The soliton compression operates
in the abnormal dispersive regime of the nonlinear fiber
and need relatively little pump power compared
with the SC method. The CDPF is made of 12 sections
of alternatively arranged DSFs and standard single
mode fibers and has a total length of 4.24 km[5].