Analysis on Propagation Characteristics of Single-mode Step Index Linear and Nonlinear Optical Fiber with Revised Version of Improved Lorentzian Approximation for the Fundamental Mode

摘要

In this paper, we approximate the fundamental mode of guided propagation by involving an extension of the previous version of Improved Lorentzian parameter for single mode step index liner and nonlinear optical fiber within the scalar variational framework. We show this version gives better performance in terms of field, propagation constants group delay and waveguide dispersion on wider scale of V-values in comparison to earlier ones and works better in low-V region.