Supercontinuum generation based on suspended core fiber infiltrated with butanol

Supercontinuum generation in silica-suspended core fibers infiltrated with butanol has been analyzed numerically. The spectra spanning from 806.19 to 1520.56 nm is generated in #F-1 fiber (D = 65.887 & mu;m) with an all-normal dispersion regime pumped by a 13.33 kW peak power of laser source at 1.3 & mu;m. With anomalous dispersion of two closely lying zero dispersion wavelengths, #F-2 fiber (D = 67.494 & mu;m) creates supercontinuum based on self-phased modulation, phasematched four-wave mixing, and no soliton fission as in the initial photonic crystal fibers pumped in the anomalous dispersion region. A broad spectrum of 629.12 nm is obtained when this fiber is excited at the same wavelength as the #F-1 fiber with a peak power of 12.5 kW. Butanol infiltration into three air holes significantly improved the dispersion properties of the fibers, contributing to supercontinuum generation advantage. The smooth, noise-free supercontinuum spectrum can be compressed into ultra-short pulses.