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We have shown numerically that all-normal dispersion fiber with a flat top at 800 nm can be used for producing of parabolic pulses with femtosecond pulse duration by means of passive nonlinear reshaping in the fiber. Ultrashort pulses delivered by typical Ti:Sapphire lasers or fiber lasers can be used as a pump source.
We have investigated numerically properties of periodic multilayer mirrors for 60-GHz wireless telecommunication band. It was shown that a quarter-wave mirror based on the crystalline quartz and high-permittivity ceramic (CeO2) can provide high reflectivity within the whole 60-GHz band independently of the incident angle.
We consider formation of ultrashort quasi-parabolic pulses in conventional silica fibers both in the near and far fields of dispersion. Through solution of nonlinear Schrödinger equation we show that in case of high soliton order N the optical wave breaking effect, occurring in optical fibers during ultrashort pulse propagation, is canceled in the far field of dispersion. This is accompanied by nonlinear...
We investigated numerically the reflectivity of aperiodic multilayer mirrors for broadband supercontinuum reflection. It was shown that multilayer mirror based on TiO2/SiO2 with layer thicknesses changed in the nonlinear way can provide high reflectivity from 468 nm to 1600 nm.
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