The propagation characteristics of optical pulses in the variable dispersion fiber is analyzed by numerically solving the nonlinear Schrdinger equation. The optical pulses compression factor and compressed pulses quality in different dispersion decreasing fibers are compared. It is calculated the compression factor of the pulses in comb like dispersion fiber instead of dispersion decreasing fiber. To optimize the picosecond optical pulses compression, a novel method of combining of high order soliton pulse compression and dispersion decreasing fiber compression is proposed.