Natural bend-distortion immunity of higher-order-mode large-mode-area fibers

Bend-induced distortion is an important limitation in the development of fibers with very large mode areas. Simulations demonstrate that higher-order modes, recently proposed for amplification, are naturally immune to bend distortion, despite their extremely large mode areas. These numerical results...

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Bibliographic Details
Published in:Optics letters 2007-04, Vol.32 (7), p.748-750
Main Authors: FINI, John M, RAMACHANDRAN, Siddharth
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber lasers
Fundamental areas of phenomenology (including applications)
Integrated optics. Optical fibers and wave guides
Lasers
Optical and optoelectronic circuits
Optics
Physics
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Summary:Bend-induced distortion is an important limitation in the development of fibers with very large mode areas. Simulations demonstrate that higher-order modes, recently proposed for amplification, are naturally immune to bend distortion, despite their extremely large mode areas. These numerical results compliment measured resistance to mode coupling. An interesting indirect coupling between nearly degenerate modes is shown to dominate the distortion.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.32.000748