Based on the nonlinear Schrdinger equation describing pulse propagation in photonic crystal fibers,we investigate the generation and properties of dispersive waves when the third-order dispersion is negative.

The paper introduces a new detection technique being quickly developed──wavelength dispersive position sensitive spectrometer with a flat crystal in the area of low energy X-ray analysis, its basic principle, related technology and applications.

The scaling properties of the waveguide dispersion in fibers;

Based on the paired-echo theory,the effect of waveguide dispersion on performance of the wideband signal pulse compression was analyzed and the corresponding expression derived.

A feasible approach to calculate waveguide dispersion was established for two kinds of the large effective-area fibers with the ring index profiles named R1 and R2 type.

This paper demonstrates technological solutions for ultra high speed single/multiple wavelength transmission system to overcome the affection of fiber wavelength dispersion, PMD and dispersion slope.