Abstract

We propose a competitive approach for analysis and optimization of optical fiber performance. Taking into account the standard fiber fabrication cycle, we develop a model of highly multistepped optical fiber. We introduce a fast and accurate algorithm which allows one to obtain propagation constants and transverse fields for systems with thousands of steps within seconds. The approach relies on both the exact analytical formulation of the corresponding eigenvalue problem and an original solving algorithm of linear complexity with respect to the number of steps. The model accurately represents arbitrary smooth profiles with azimuthal symmetry, which, together with low computation time, opens up ample opportunities for various optimization schemes. Obtained results are compared with those of other numerical and analytical methods.

Rayleigh backscattering from the fundamental mode in step-index multimode optical fibers

M. A. Bisyarin, O. I. Kotov, A. H. Hartog, L. B. Liokumovich, and N. A. Ushakov
Appl. Opt. 56(2) 354-364 (2017)

Multi-step-index fiber with a large number of weakly coupled OAM mode groups for IM/DD systems in data centers: design, fabrication, and characterization

Mingjuan Zhuang, Jiajing Tu, Dawei Wang, Shecheng Gao, Lei Shen, Jie Luo, Weiping Liu, and Zhaohui Li
Opt. Lett. 48(22) 6036-6039 (2023)

Analysis of intrinsic coupling loss in multi-step index optical fibres

Gotzon Aldabaldetreku, Gaizka Durana, Joseba Zubia, Jon Arrue, Felipe Jiménez, and Javier Mateo
Opt. Express 13(9) 3283-3295 (2005)

Modeling optical emission from a highly multi-mode step-index fiber via ray tracing and the limitations

Hao Pang, Maximilian Wörner, and Tobias Haecker
Appl. Opt. 60(35) 10885-10892 (2021)

Pseudospectral mode solver for analyzing nonlinear optical waveguides

Chia-Chien Huang
Opt. Express 20(12) 13014-13029 (2012)