Open AccessAvoided crossings in photonic crystal fibers
Author(s) -
Florian Jansen,
Fabian Stutzki,
César Jáuregui,
Jens Limpert,
Andreas Tünnermann
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.013578
Subject(s) - optics , photonic crystal fiber , materials science , photonic crystal , radius , beam (structure) , bending , core (optical fiber) , power (physics) , laser , optical fiber , physics , computer science , computer security , quantum mechanics , composite material
The impact of avoided crossings (also known as anti-crossings) in single and double-clad large mode area Photonic Crystal Fibers (PCFs) suitable for high-power laser systems is evaluated numerically. It is pointed out that an inappropriate choice of pump core diameter, bending radius and/or index depression may lead to avoided crossings that manifest themselves in unwanted deformations of the output beam.