Numerical studies on the compression and amplification of the fundamental soliton pulse using erbium-doped fiber amplifier

Starting from the nonlinear Schrdinger equation describing the pulse propagation in erbium-doped fiber amplifier(EDFA),the compression and amplification of fundamental soliton pulse using EDFA are investigated numerically,and the optimum schemes for soliton pulse compression are proposed.The results show that:for the fundamental soliton pulse without the chirp,the pulse can be compressed and amplified adiabatically by selecting appropriate parameters of erbium-doped fibers;for the chirped fundamental soliton pulse,the process of the compression and amplification is not satisfied adiabatical condition;the effective compression and amplification can be obtained for the positive chirped fundamental soliton pulse,but the compression effect for the negative chirped fundamental soliton pulse is poor.