Crystals (Apr 2022)

Synthesis and Laser-Related Spectroscopy of Er:Y<sub>2</sub>O<sub>3</sub> Optical Ceramics as a Gain Medium for In-Band-Pumped 1.6 µm Lasers

  • Konstantin N. Gorbachenya,
  • Anatol S. Yasukevich,
  • Viktor E. Kisel,
  • Kirill V. Lopukhin,
  • Vladimir V. Balashov,
  • Alexander V. Fedin,
  • Miron N. Gerke,
  • Elena A. Volkova,
  • Vasiliy O. Yapaskurt,
  • Nikolay N. Kuzmin,
  • Dmitry A. Ksenofontov,
  • Dmitry V. Korost,
  • Nikolay V. Kuleshov

DOI
https://doi.org/10.3390/cryst12040519
Journal volume & issue
Vol. 12, no. 4
p. 519

Abstract

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In this paper, Er:Y2O3 optical ceramics were fabricated and details of the synthesis were presented. The spectral–luminescent properties of Er3+:Y2O3 optical ceramics were investigated. The absorption and emission cross-section spectra were determined. The luminescence kinetics at near 1.6 µm was single exponential and the lifetime of erbium 4I13/2 energy level was determined. In the frame of the conventional Judd–Ofelt theory, the emission properties of the energy levels of erbium 4I13/2 and 4I11/2 involved in laser operation at near 1.6 µm were calculated. The gain coefficient curves for typical values of the relative population of the upper laser level 4I13/2 were presented. The composition and structure were studied using the SEM, XRD, FTIR spectroscopy, and X-ray computer tomography techniques.

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