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We numerically analyze the stimulated Raman scattering (SRS) in nonlinear photonic crystal fibers (PCF). Generalized nonlinear Schrodinger equation was used to model the propagation of femtosecond pulses in PCF. We demonstrate that, for a sufficiently broad spectral content, stimulated Raman scattering transfers energy from the higher frequency spectral components to lower frequencies, resulting in...
A versatile numerical tool simulating the spectral and temporal behaviour of fibre gratings operating in reflection or in transmission is designed. Several constraints and geometries are handled by this user-friendly numerical tool including uniform, apodized, chirped, discrete phase-shifted, and superstructure gratings; short-period and long-period gratings. The versatility and extensibility of the...
In this paper, we implement a numerical tool for the simulation of the spectral and temporal characteristics that can be achieved in fiber reflection and transmission gratings. Both principles for understanding and techniques for manufacturing fiber gratings are emphasized. Examples of possible utilization are presented. The types of gratings considered by this numerical tool include uniform, apodized,...
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