Journal ArticleDOI
Geometrical birefringence in a class of step-index fiber
TLDR
In this article, an effective index method was developed for the calculation of geometrical birefringence, i.e., the difference in phase velocity between the two fundamental polarization modes in a weakly guiding step-index fiber, of which the core can be of rectangular, elliptical, rhomboid or any other shape belonging to the same class, with arbitrary aspect ratio.Abstract:
Based on a scalar wave equation including the geometrical effect, an effective-index method is developed for the calculation of geometrical birefringence, i.e., the difference in phase velocity between the two fundamental polarization modes, in a weakly guiding step-index fiber, of which the core can be of rectangular, elliptical, rhomboid or any other shape belonging to the same class, with arbitrary aspect ratio. Numerical results show that the method is very efficient and accurate in obtaining the birefringence and can also provide very useful information on the birefringenee-induced dispersion in the fiber.read more
Citations
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Journal ArticleDOI
Review of numerical and approximate methods for the modal analysis of general optical dielectric waveguides
TL;DR: Numerical and approximate methods for the modal analysis of general optical dielectric waveguides with emphasis on recent developments are reviewed, ranging from the specialized ones for analysing restricted classes of waveguide to the most general ones for analyseing inhomogeneous, arbitrarily-shaped, anisotropic waveguiding.
Journal ArticleDOI
Dual effective-index method for the analysis of rectangular dielectric waveguides.
TL;DR: Numerical results from analyzing several basic rectangular structures reveal that in most cases the new technique is considerably more accurate than the conventional effective-index method and does not generate ambiguous results as the conventional Effective Index method does in the analysis of square dielectric rods.
Book ChapterDOI
I Polarimetric optical fibers and sensors
TL;DR: In this paper, the authors provide an overview of the physical origin of the perturbations on the lowest-order mode propagation in highly birefringent (HB) polarization-maintaining fibers, together with their impact on applications in optical fiber sensors and systems.
Journal ArticleDOI
A conceptual model of light coupling by pillar diffraction gratings
TL;DR: In this article, K.R.C. acknowledges the support of the Australian Research Council fellowship for Advanced Silicon Photovoltaics and Photonics (ASEPHP) research.
Journal ArticleDOI
Analysis of the effective-index method for the vector modes of rectangular-core dielectric waveguides
TL;DR: In this paper, the effective-index method does not solve the full vector-wave equation that governs the modes, instead, it solves the reduced vector wave equation, which is accurate only for approximately linearly polarized waves, which leads to additional errors as the waveguide being analyzed is a mathematically nonseparable structure.
References
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Book Chapter
Optical waveguide theory
TL;DR: In this article, the authors outline the key principles and parameters which describe and define the operation of optical waveguides and fibres, including dispersion and non linear effects, and provide the foundation for understanding the detailed operation of a wide variety of optical components.
Journal ArticleDOI
Polarization in optical fibers
TL;DR: In this paper, the nature of random coupling between normal modes of polarization is analyzed and discussed in connection with various applications, such as fibers with very small or very large birefringence for polarization dependent applications.
Journal ArticleDOI
Origins and control of polarization effects in single-mode fibers
TL;DR: In this article, the basic birefringences that couple the two modes and change the polarization state along the fiber are reviewed, and three cases of uniform, phase-matched, and random coupling are considered.