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Proceedings Paper

Mode coupling in large-diameter multi-mode silica optical fibers
Author(s): Changgeng Ye; Joona Koponen; Ville Aallos; Teemu Kokki
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Paper Abstract

We report an experimental study on mode coupling in various large-diameter multi-mode silica optical fibers. The evolution of the far-field angular power distribution is experimentally measured, and the mode coupling characteristics are studied on a variety of fibers with diverse parameters, including core/cladding diameter (50-400μm/125-480μm), length (few to hundreds of meters), NA (0.15-0.46), etc. The influences of fiber geometry, bending are discussed. This study could provide practical guidance in designing power delivery fibers for high-power diode, solid-state and fiber lasers to preserve the input brightness and beam quality.

Paper Details

Date Published: 26 February 2013
PDF: 7 pages
Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86012B (26 February 2013); doi: 10.1117/12.2002819
Show Author Affiliations
Changgeng Ye, nLIGHT Corp., Lohja (Finland)
Joona Koponen, nLIGHT Corp., Lohja (Finland)
Ville Aallos, nLIGHT Corp., Lohja (Finland)
Teemu Kokki, nLIGHT Corp., Lohja (Finland)

Published in SPIE Proceedings Vol. 8601:
Fiber Lasers X: Technology, Systems, and Applications
Sami T. Hendow, Editor(s)

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