Temperature Dependence of Nonlinear Pulse Reshaping Towards Parabolic Shape for a Silicon Core Single Mode Optical Fiber

Abstract

Normal dispersion highly nonlinear silicon core fibers (NDHNSCF) are designed and optimized within the single mode regime with the goal of generating stable parabolic pulses (PP) compatible with chip-scale devices. The research focuses on identifying optimal pulse parameters and essential gain value, enabling the formation of parabolic pulses within a short fiber length (~ cm) while maintaining stability over a comparatively longer length. Given that silicon, as a semiconductor core material, exhibits significant changes in fiber parameters when subjected to varying ambient temperatures, our primary objective is to investigate the effect of temperature on pulse reshaping through the proposed NDHNSCF. To the best of our knowledge, the systematic study on this specific type of nonlinear pulse reshaping under the external influence of ambient temperature and input pulse repetition rate has not been reported earlier.