Nikat Rajak Mulla,
Kazi Kutubuddin Sayyad Liyakat,
- Student, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
- Professor and Head, Department of Electronics and Telecommunication Engineering, Brahmdevdada Mane Institute of Technology, Solapur, Maharashtra, India
Abstract
The application of the linear Finite Element Method (FEM) to the analysis of the field distribution in optical fibres is examined in this work. Characterizing fibre characteristics like mode profiles, propagation constants, and dispersion, all of which are critical for maximizing fibre performance in a variety of applications like sensing and telecommunications, requires an understanding of the distribution of electric and magnetic fields. In order to accurately determine the modal fields in optical fibres with various cross-sectional geometries and refractive index profiles, this study focusses on using a linear FEM formulation to effectively solve the governing Helmholtz equation. The method’s accuracy and computing efficiency are assessed, demonstrating its promise for complicated fibre design analysis and simulation. This method contributes to better fibre performance and design by offering insightful information about how light propagates across optical fibres. An analytical simplification of Maxwell’s equations allows the development of the scalar wave equation. By adjusting the core radius, different field and contour distributions can be obtained for modes like LP 01, LP 21, and LP 31. The finite element technique (FEM) can be used to analyse the modal properties of an optical cable. The conventional eigenvalue equation is obtained from Maxwell’s equation following FEM analysis. The scalar wave equation can be approximated using the finite element method (FEM). Increasing the number of elements and moving from the linear to the quadratic finite element approach will result in a higher level of accuracy. The finite element method (FEM) can be used to thoroughly analyse any waveguide problem.
Keywords: Field distribution, optical fibre, finite element method, eigen value, eigen vector, Finite Element Method (FEM)
[This article belongs to Trends in Opto-electro & Optical Communication ]
Nikat Rajak Mulla, Kazi Kutubuddin Sayyad Liyakat. Analysis of Field Distribution in Optical Fibre Using FEM Method. Trends in Opto-electro & Optical Communication. 2025; 15(02):31-40.
Nikat Rajak Mulla, Kazi Kutubuddin Sayyad Liyakat. Analysis of Field Distribution in Optical Fibre Using FEM Method. Trends in Opto-electro & Optical Communication. 2025; 15(02):31-40. Available from: https://journals.stmjournals.com/toeoc/article=2025/view=215300
References
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Trends in Opto-electro & Optical Communication
| Volume | 15 |
| Issue | 02 |
| Received | 31/05/2025 |
| Accepted | 31/05/2025 |
| Published | 30/06/2025 |
| Publication Time | 30 Days |
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