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Mathematics > Numerical Analysis
Title: Adaptive resolution of fine scales in modes of microstructured optical fibers
(Submitted on 28 Mar 2024)
Abstract: An adaptive algorithm for computing eigenmodes and propagation constants of optical fibers is proposed. The algorithm is built using a dual-weighted residual error estimator. The residuals are based on the eigensystem for leaky hybrid modes obtained from Maxwell equations truncated to a finite domain after a transformation by a perfectly matched layer. The adaptive algorithm is then applied to compute practically interesting modes for multiple fiber microstructures. Emerging microstructured optical fibers are characterized by complex geometrical features in their transverse cross-section. Their leaky modes, useful for confining and propagating light in their cores, often exhibit fine scale features. The adaptive algorithm automatically captures these features without any expert input. The results also show that confinement losses of these modes are captured accurately on the adaptively found meshes.
Submission history
From: Gabriel Pinochet Soto [view email][v1] Thu, 28 Mar 2024 15:14:08 GMT (10320kb,D)
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