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arXiv · 2009.12459

Multiphoton absorption excited upconversion luminescence in optical fiber

F. Mangini·M. Ferraro·M. Zitelli·A. Niang·A. Tonello·V. Couderc·S. Wabnitz
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Abstract

We experimentally demonstrate a novel nonlinear effect in optical fibers: upconversion luminescence generation excited by multiphoton absorption of femtosecond infrared pulses. We directly estimate the average number of photons involved in the up-conversion process, by varying the wavelength of the pump source. We highlight the role of non-bridging oxygen hole centers and oxygen deficient center defects, and directly compare the intensity of side-scattered luminescence with numerical simulations of pulse propagation.

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F. Mangini, M. Ferraro, M. Zitelli, A. Niang, A. Tonello, V. Couderc, S. Wabnitz. 2020-09-25. Multiphoton absorption excited upconversion luminescence in optical fiber. https://arxiv.org/abs/2009.12459

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