Multiphoton absorption excited upconversion luminescence in optical fiber

2020/09/25 by Fabio Mangini, Mario Ferraro, Mangini, F. +11
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Optics (physics.optics) #Photorefractive and Nonlinear Optics #Solid State Laser Technologies

paper · pdf · doi:10.48550/arxiv.2009.12459

openalex publication_date 2020/09/25 · openalex created_date 2020/10/01 · openalex updated_date 2026/07/28

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.

Citations

• Optically active oxygen-deficiency-related centers in amorphous silicon dioxide

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