Skew modes in specialty fibers with step-index profiles

Karl-Friedrich Klein; Cornell Gonschior; Ruan Xia; Georg Hillrichs; Martin Bloos; Hans Poisel

doi:10.1117/12.847046

24 February 2010 Skew modes in specialty fibers with step-index profile

Karl-Friedrich Klein, Cornell Gonschior, Ruan Xia, Georg Hillrichs, Martin Bloos, Hans Poisel

Proceedings Volume 7559, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X; 755909 (2010) https://doi.org/10.1117/12.847046
Event: SPIE BiOS, 2010, San Francisco, California, United States

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.

Citation Download Citation

Karl-Friedrich Klein, Cornell Gonschior, Ruan Xia, Georg Hillrichs, Martin Bloos, and Hans Poisel "Skew modes in specialty fibers with step-index profile", Proc. SPIE 7559, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications X, 755909 (24 February 2010); https://doi.org/10.1117/12.847046

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