Supercontinuum Generation in Silica Plasmonic Waveguide by Bright Soliton

We study the supercontinuum generation in a nonlinear silica single layer plasmonic waveguide. A major part of spectral broadening is related to soliton dynamics when an ultra-short pulse is launched in waveguide with anomalous GVD. Production of supercontinuum with 10th, 15th and 30th, orders bright solitons by considering all the nonlinear effects and dispersions i.e., inter-pulse Raman scattering, self-steepening, self-phase modulation, cross phase modulation, which indicates the existence of a supercontinuum propagation about 20 times broadening than initial width of input spectrum. Also, we consider the absorption effect of plasmonic waveguide by calculating propagation length from propagation constant. The propagation length of plasmonic is compared with the waveguide length and nonlinear length. At wavelength 1.22μm, the propagation length is obtained in the order of waveguide length which means one can consider the effect of absorption cannot alter the results. The nonlinear plasmonic waveguides are suitable for integrated photonics because of subwavelength confinement of plasmonic waveguides