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Proceedings Paper

Skew modes in specialty fibers with step-index profiles
Author(s): Karl-Friedrich Klein; Cornell Gonschior; Ruan Xia; Georg Hillrichs; Martin Bloos; Hans Poisel
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Paper Abstract

In step-index multimode-fibers, controlled excitation conditions are essential to achieve optimized transmission properties and control the output beam profile. Especially with lasers as a light-source, selective methods of mode excitation can be used easily. So far, fiber properties have been specified using meridional rays (modes), as proposed with the inverse far-field method. In addition to these meridional rays in step-index fibers, high-order skew rays can be selectively excited. Especially with excitation angles higher than the numerical aperture of the fiber, these skew rays can propagate with interesting properties. Based on these extreme test conditions, the core-cladding interface of large-core step-index fibers can be more efficiently controlled.

Paper Details

Date Published: 24 February 2010
PDF: 10 pages
Proc. SPIE 7559, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X, 755909 (24 February 2010); doi: 10.1117/12.847046
Show Author Affiliations
Karl-Friedrich Klein, Univ. of Applied Sciences Giessen-Friedberg (Germany)
Cornell Gonschior, Univ. of Applied Sciences Giessen-Friedberg (Germany)
City Univ. London (United Kingdom)
Ruan Xia, Univ. of Applied Sciences Merseburg (Germany)
Georg Hillrichs, Univ. of Applied Sciences Merseburg (Germany)
Martin Bloos, Univ. of Applied Sciences Nuremberg (Germany)
Hans Poisel, Univ. of Applied Sciences Nuremberg (Germany)


Published in SPIE Proceedings Vol. 7559:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X
Israel Gannot, Editor(s)

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