Multiphoton absorption excited upconversion luminescence in optical fiber
Optics
2020-09-29 v1
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.
Cite
@article{arxiv.2009.12459,
title = {Multiphoton absorption excited upconversion luminescence in optical fiber},
author = {F. Mangini and M. Ferraro and M. Zitelli and A. Niang and A. Tonello and V. Couderc and S. Wabnitz},
journal= {arXiv preprint arXiv:2009.12459},
year = {2020}
}