A 63fs soliton pulse generation by compression of higher order soliton in linear dispersion decreasing fiber

A 2.05 m long linear dispersion decreasing fiber (LDDF) has been proposed for higher-order ultrashort soliton compression for nm-pm range soliton generation. We have obtained numerically ultrashort soliton of 63 fs after compression in LDDF. The spatial dimension has been found as 523.5 pm. Nonlinear Schrödinger equation (NLSE) has been solved using split-step Fourier (SSF) method for numerical analysis of ultrashort soliton propagation and compression. Such compressed pulse may have extensive applications in cancer cell treatment for creating smaller beam spot.