Computer Simulation of Ultra-Short Optical Pulse Propagation in Solid and Hollow Wave-Guides

Mahesh R. JUNNARKAR  Naoshi UESUGI  

IEICE TRANSACTIONS on Electronics   Vol.E81-C   No.2   pp.240-245
Publication Date: 1998/02/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Ultrashort Optical Pulse Technologies and their Applications)
Category: Femtosecond Pulse Compression, Amplification and Manipulation
propagation,  waveguide,  gas,  Raman,  nonlinear,  

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We examine effects of higher order dispersion and optical non-linearity, including linear attenuation on intense short pulses propagating along solid and Noble-gas-filled wave-guides. In order to simulate realistic pulse and spectral shapes, we have taken into account quadratic and cubic dispersion as well as Raman (solid wave-guide) and shock nonlinear terms in the generalized Schrodinger equation of propagation. The phonon oscillation corresponding to 13. 3 THz in SiO2 gets superimposed on to the exit pulse in the normal dispersion regime of solid fiber for lengths exceeding 6LDLNL. The super continuum spectrum from hollow Noble-gas-filled fibers shows remarkably deep modulations.