High stability of polymer optical fiber with dye doped cladding for illumination systems

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• 作者：L. Jaramillo-Ochoa^a ; R. Narro-Garcí ; a^a ; ^b ; M.A. Ocampo^a ; R. Quintero-Torres^a ; ^{rquintero@fata.unam.mx}
• 关键词：Rhodamine degradation ; Luminescence ; Polymer optical fiber ; Fiber light system
• 刊名：Journal of Luminescence
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：184
• 期：Complete
• 页码：205-210
• 全文大小：769 K
• 卷排序：184

文摘

In this work, the photodegradation of a polymer optical fiber with Rhodamine doped cladding as a function of illumination time and excitation intensity is presented. To show the effect of photodegradation on different bulk geometries and environments, the photodegradation from a dye doped preform and a PMMA thick film is also evaluated. The reversible and the irreversible degradation of the florescent material were quantified under an established excitation scheme. To this purpose, a four-level system to model the photodegradation rates and its relation with the population of the states is presented and it is used to justify a possible underlying mechanism. The obtained results suggest an increase of one order of magnitude in the stability (lifetime) of the polymer optical fiber with respect to the preform or the thick film geometry stability.