Broadband supercontinuum generation in photonic crystal fibers using cosh-Gaussian pulses at 835Â nm wavelength

This paper presents broadband supercontinuum generation in photonic crystal fibers employing cosh-Gaussian pulses. The supercontinuum spectrum of cosh-Gaussian pulses consists of a large number of internal oscillations which increases with the increase in the value of cosh factor. Unlike the supercontinuum spectra created by Gaussian pulses, which consists of two distinct minima, the spectra created by cosh-Gaussian pulses of equal peak power and pulse duration characterized by virtually flat and broadband supercontinuum. Improvement in the flatness of the generated supercontinuum increases with the increase in the value of cosh factor.