Investigation of transmission properties of a practical double exponential pulse for communication and sensing application

Abstract

In this paper, a simple generation technique and the propagation characteristics, of a practically possible double exponential pulse are proposed and numerically analyzed. Solutions of non-linear Schrödinger's equation (NLSE) has mostly been used to analyze the same in comparison with Gaussian ultrashort pulses, for various classes of optical fibers. The Double exponential pulses have shown a bandwidth-efficiency ~ 23% over Gaussian pulses, making it suitable for time-and-wavelength-division-multiplexed passive optical networks (TWDM-PON) applications in optical communication, as recommended by ITU-T G-989. Non-linear behavior of the pulse was also investigated for super-continuum (SC) generation. Super-continuum generated by Double exponential pulses was found to have ~12% higher Spectral Broadening factor compared to Gaussian pulse. Overall, the proposed double exponential pulse, generated by the proposed method, potentially displays comparable, and sometimes better sensing and communication properties, compared to the Gaussian pulses.