Mathematical modeling and experimental validation of optical coupling efficiency in Ultraviolet-C light emitting diode systems

This study provides a novel mathematical model for predicting the coupling efficiency (C.E) between multimode optical fibers (MMF) and ultraviolet light-emitting diodes (UV-C LEDs) with a high degree of accuracy. Unlike previous models, which rely on simplified assumptions (ideal conditions), this a...

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Bibliographic Details
Main Authors: Muhammad Salman Mohsin, Mariana Lanzarini-Lopes, Katrina Fitzpatrick
Format: Article
Language:English
Published: Elsevier 2025-12-01
Series:Results in Optics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666950125000549
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Summary:This study provides a novel mathematical model for predicting the coupling efficiency (C.E) between multimode optical fibers (MMF) and ultraviolet light-emitting diodes (UV-C LEDs) with a high degree of accuracy. Unlike previous models, which rely on simplified assumptions (ideal conditions), this approach incorporates real-world variations in LED emission profiles, optical misalignments, and Fresnel losses. The model was validated using four distinct optical system configurations, demonstrating strong agreement (R2 = 0.94) with experimental data. The results from this study provide a robust framework for designing efficient UV delivery systems, particularly for disinfection and sensing applications and will serve as a practical guideline that may be useful for both the scientific and industrial community.
ISSN:2666-9501