Open AccessImplications of higher-order mode content in large mode area fibers with good beam quality
Author(s) -
S. Wielandy
Publication year - 2007
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.15.015402
Subject(s) - optics , quality (philosophy) , beam (structure) , laser beam quality , mode (computer interface) , materials science , fiber , optical fiber , intensity (physics) , mode volume , phase (matter) , graded index fiber , physics , laser beams , laser , composite material , computer science , fiber optic sensor , quantum mechanics , operating system
The impact of Higher-Order Mode content on beam quality in large mode area fibers supporting several guided modes is carefully investigated. It is shown that even excellent beam quality (M(2) < 1.1) in LMA fibers does not guarantee low HOM content, and that the presence of HOMs can lead to significant uncontrollable changes in beam quality, peak intensity, and pointing uncertainty that depend on the uncontrollable relative phase of the modes in the fiber.