Arunangshu Sadhu

TL;DR: This article proposes and develops a simple iterative method based on Chebyshev technique to investigate propagation characteristics of single mode nonlinear fibers and shows that the results match with available rigorous results reliably.

TL;DR: In this article, the authors investigated the Kerr nonlinear optical processes in the case of a single-mode trapezoidal index fiber based on recently formulated and appropriate Marcuse-type relations for spot size in terms of normalized frequency corresponding to such fiber having various aspect ratios.

TL;DR: In this article, a simple and straightforward approximate analysis to investigate the effect of Kerr type nonlinear optical processes in sub-wavelength diameter step index optical fibers based on Marcuse method in single mode region is presented.

Abstract: A significant effect of nature of refractive index grading in the core of sub-wavelength diameter optical fibres on their performance characteristics in single-mode region is predicted and reported, for the first time, in connection with achievement of waveguide enhancement of Kerr nonlinearity-based optical processes. The analysis is based on a straightforward approach involving Marcuse spot size formulations for single-mode graded index fibre. Our formulations and results provide useful information and insight for optimum transverse dimensions of graded index fibre together with normalized core nonlinearity coefficient corresponding to profile exponent of the power law profile and should invite attention of system designers.

TL;DR: In this paper , two different partition algorithms are proposed assuming full compass axis agreement and half compass agreement among the local coordinate systems of the robots, and an assembling algorithm for the half-compass axis agreement model has also been proposed for synchronous and semi-synchronous robots.