Scattering Into Guided Modes Due to Imperfect Graded-Index Structure in Polymer Optical Fibers

  • Rayleigh scattering in graded-index polymer optical fibers (GI-POF) is studied under the assumption that spherical scatterers are uniformly distributed within the layers of concentric ring structure. This approximation allows to describe typical imperfections occurring during the fabrication of GI-POFs. For the purpose of experimental characterization by side illumination, an analytical model of the light conversion into waveguide modes has been developed. This model describes the mode excitation by a multiplicative contribution of three different physical mechanisms. The corresponding experimental analysis of the light scattering has been performed and compared with numerical simulation results for the fibers with single-ring and multi-ring structures. Besides the application to GI-POFs, this article can be also applied to multi-step index fibers.

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Author:Alexander A. Shibelgut, Dmitry A. KonkinORCiD, Rudolph Victorovich LitvinovORCiD, Roman KruglovORCiD, Christian-Alexander BungeORCiD, Hans Poisel
DOI:https://doi.org/10.1109/JLT.2020.2970752
ISSN:0733-8724
Parent Title (English):Journal of Lightwave Technology
Publisher:Institute of Electrical and Electronics Engineers (IEEE)
Document Type:Article
Language:English
Reviewed:Begutachtet/Reviewed
Release Date:2024/11/26
Tag:Laser beams; Measurement by laser beam; Optical fibers; Polymers; Rayleigh scattering
Volume:38
Issue:6
Pagenumber:7
First Page:1454
Last Page:1460
institutes:Fakultät für Elektrotechnik Feinwerktechnik Informationstechnik
Polymer Optical Fiber Application Center
Research Themes:Materialien & Produktionstechnik
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