Silica microstructure-based optical fiber activated by YAG:Nd3+ nanocrystals

Aleksandra Matrosova; Sergei Evstropiev; Vladimir Demidov; Nikolai Nikonorov; Vladimir Aseev; Natalia Kuzmenko; Konstantin Dukelskii; Aleksandr Komarov; Ksenia Oreshkina

doi:10.1117/12.2555921

1 April 2020 Silica microstructure-based optical fiber activated by YAG:Nd³⁺ nanocrystals

Aleksandra Matrosova, Sergei Evstropiev, Vladimir Demidov, Nikolai Nikonorov, Vladimir Aseev, Natalia Kuzmenko, Konstantin Dukelskii, Aleksandr Komarov, Ksenia Oreshkina

Author Affiliations +

Proceedings Volume 11355, Micro-Structured and Specialty Optical Fibres VI; 1135508 (2020) https://doi.org/10.1117/12.2555921
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

The paper describes the polymer-salt method of neodymium-doped aluminum yttrium garnet (YAG:Nd) crystals formation inside the channels of a microstructured silica fiber preform. The crystals formation was performed through the impregnation of inner surfaces of the channels by aqueous solutions of thermally decomposable salts (yttrium nitrate, aluminum nitrate, neodymium chloride) and an organic polymer with subsequent processes of drying and thermal treatment at the temperature of 1100°C. The composite structure prepared was drawn into the fiber at the temperature of 2000°C. The X-ray diffraction analysis revealed the formation of YAG:Nd crystals from 25 nm to 37 nm in size in the silica glass matrix of the fiber. Measurement of the attenuation spectral dependence confirmed the presence of optical signal absorption bands inherent to Nd³⁺ ions. The shape of the nanocrystals luminescence spectrum is characteristic to the YAG:Nd with a peak at the wavelength of 1064 nm.

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Aleksandra Matrosova, Sergei Evstropiev, Vladimir Demidov, Nikolai Nikonorov, Vladimir Aseev, Natalia Kuzmenko, Konstantin Dukelskii, Aleksandr Komarov, and Ksenia Oreshkina "Silica microstructure-based optical fiber activated by YAG:Nd³⁺ nanocrystals", Proc. SPIE 11355, Micro-Structured and Specialty Optical Fibres VI, 1135508 (1 April 2020); https://doi.org/10.1117/12.2555921

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