Soliton Self-Frequency Shift Cancellation
The ability to create PCFs with negative dispersion slope at the zero dispersion
wavelength (in SMF the slope is positive, i.e., the dispersion becomes more anom-
alous as the wavelength increases) has made it possible to observe C
ˇ
erenkov-like
effects in which solitons (which form on the anomalous side of the dispersion zero)
shed power into dispersive radiation at longer wavelengths on the normal side of the
dispersion zero. This occurs because higher order dispersion causes the edges of
the soliton spectrum to phase-match to linear waves. The result is stabilization of the
soliton self-frequency shift, at the cost of gradual loss of soliton energy [109].
The behavior of solitons in the presence of wavele ...