Small-core photonic crystal fibres with weakly disordered air-hole claddings

2003/11/21 by N. A. Mortensen, Niels Asger Mortensen, M.D. Nielsen +7 · 2 citations
Engineering · Physics and Astronomy · #Optical Network Technologies #Photonic Crystal and Fiber Optics #Photonic Crystals and Applications #physics.optics

paper · pdf · doi:10.1088/1464-4258/6/2/011

published as J. Opt. A: Pure Appl. Opt. 6, 221 (2004) · 6 pages including 4 figures. To appear in J. Opt. A: Pure Appl. Opt

arxiv created 2003/11/21 · openalex publication_date 2003/12/05 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Motivated by recent experimental work by Folkenberg et al. we consider the effect of weak disorder in the air-hole lattice of small-core photonic crystal fibers. We find that the broken symmetry leads to higher-order modes which have generic intensity distributions resembling those found in standard fibers with elliptical cores. This explains why recently reported experimental higher-order mode profiles appear very different from those calculated numerically for ideal photonic crystal fibers with inversion and six-fold rotational symmetry. The splitting of the four higher-order modes into two groups fully correlates with the observation that these modes have different cut-offs.

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