Analytical Analysis of Transmission and Switching Properties of Nonlinear Long Period Fiber Grating

Authors

  • Ghisiya Chouhan, Ritesh Yadav, Santosh Pawar, Rajul Jirety

Abstract

We study analytically the optical spectral and switching characteristics of nonlinear long period fiber grating.  The nonlinear coupled-mode equations were solved analytically to obtain the intensity dependent expression of grating transitivity. The results show that long period fiber grating exhibits S-type, N-type and multilevel type of switching properties that can be used for all optical computing applications. The analysis also shows that the intensity of the incident beam modifies the spectral properties due to the nonlinear phase modulation. The shifting and splitting in the transmission band has been observed in the plotting curves. The multistable properties of grating are also discussed in terms of multi bit optical signal processing. Finally, the concept for designing the optical tunnel diode is described on the basis of the characteristics of N-type switching which are the prominent applications for optical storage devices.

Published

2018-11-30

Issue

Section

Articles