Study of optical pulse compression with higher-order nonlinearity and dispersion

Propagation of ultrashort pulses in single-mode fibers, which involves a third-order dispersion and a self steepening effect (optical shock), have been studied to obtain femtosecond pulses with a grating pair pulse compressor. These effects cause asymmetrically broadened and nonlinearly chirped optical pulses, which degrade the characteristics of the pulse compression. These effects can be partially compensated for and the compressed pulse width can be reduced by using a third-order term of the phase function of the grating pair.