Silica fibres activated by YAG : Nd{sup 3+} nanocrystals

Journal Article · Sun Dec 01 00:00:00 EST 2019 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QEL17163· OSTI ID:23005045

Evstropiev, S. K.; Aseev, V. A.; Kuz’menko, N. K.; Matrosova, A. S.; Dukelskii, K. V.; Nikonorov, N. V.; Oreshkina, K. V. ^[1]; Demidov, V. V.; Khokhlov, A. V.

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1. ITMO University, Kronverkskii prosp. 49, 197101 St. Petersburg (Russian Federation)

We report data on the development of a polymer – salt method for the formation of aluminium yttrium garnet crystals doped with neodymium ions (YAG : Nd) inside the channels of a preform of microstructured fibre based on pure silica glass. The crystals are obtained by impregnating the channels with aqueous solutions of thermally decomposable salts (yttrium nitrate, aluminium nitrate, neodymium chloride) and an organic polymer, followed by drying and heat treatment at a temperature of 1100 °C. The resulting composite structure is drawn into the fibre at a temperature of 2000 °C. Using X-ray diffraction analysis, the presence of oriented YAG : Nd crystals ranging in size from 25 to 37 nm in the silica glass matrix of fibre is established. Measurements of the spectral dependence of optical losses in fibre show the presence of absorption bands of the optical signal, characteristic of Nd{sup 3+} ions. The shape of the luminescence spectra of nanocrystals is typical of YAG : Nd with a radiation peak at a wavelength of 1064 nm. (paper)

• OSTI ID: 23005045
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Vol. 49, Issue 12; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM
ALUMINIUM NITRATES
AQUEOUS SOLUTIONS
DOPED MATERIALS
FIBERS
GLASS
HEAT TREATMENTS
LUMINESCENCE
MATRICES
MICROSTRUCTURE
NEODYMIUM IONS
NEODYMIUM LASERS
ORGANIC POLYMERS
SALTS
SIGNALS
SILICA
WAVELENGTHS
X-RAY DIFFRACTION
YTTRIUM