By using the multi-photon nonlinear Compton scattering conception and the model of the non- linear scattering between an electron and a photon,the propagation equations of the laser amplification of the coupling chirped-pulse in the total internal reflective photonic crystal fiber are built.

The limitation of time resolution of the chirped pulse spectral encoding technique;

Multilayer dielectric thin film reflector for spectrum reshaping of chirped pulse laser in Nd:glass chirped pulse amplification system;

The production and elimination of the spatial singularity for ultrashort chirped pulse-beam propagation in free space;

Study on the propagation properties of the chirped-pulse in the Ti:sapphire amplified medium;

Chirped-pulse mismatching amplification of ytterbium doped fiber amplifier;

Effect of the laser chirp on the laser filamentation is investigated.

The frequenCy shift and chirp arising from the nonlinear refractive indexinduced by free-carrier generation in GaAs have been investigsted.

Dual Mechanism for optical chirped pulse being compressed with a F P resonator always simultaneously exists, which is the mechanism of filtering effect and dispersion effect.