Spectroscopic analysis of Er:Y2O3 crystal at 2.7 μm mid-IR laser

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Wentao Hou
  • Zian Xu
  • Hengyu Zhao
  • Yanyan Xue
  • Qingguo Wang
  • And 2 others
  • Xiaodong Xu
  • Jun Xu

Detail(s)

Original languageEnglish
Article number110017
Journal / PublicationOptical Materials
Volume107
Online published11 Jun 2020
Publication statusPublished - Sept 2020

Abstract

High quality 7 at%Er:Y2O3 crystal was successfully grown by Fz method. Judd-Ofelt theory was applied to analyze spectroscopic properties at 2.7 μm. The larger value of Ω2 shows low local environment symmetry exists in Er:Y2O3 crystal, and the large Ω46 indicates better spectral quality. The larger absorption cross-section and FWHM are beneficial to efficient absorption of pump source. The fluorescence spectra and lifetimes of Er:Y2O3 crystal were measured and studied at 2.7 μm. The emission cross-sections at 2723 nm was calculated to be 1.41 × 10−20cm2. Compared with other Er3+ doped crystals, the large spectral quality factors Q and low fluorescence lifetime ratio illustrate that Er:Y2O3 crystal has excellent laser properties at 2.7 μm. In addition, the low inversion ratio also indicates great potential of Er:Y2O3 crystal for laser generation at 2.7 μm.

Research Area(s)

  • Er:Y2O3 crystal, J-O theory, MIR laser, Spectroscopic properties

Citation Format(s)

Spectroscopic analysis of Er:Y2O3 crystal at 2.7 μm mid-IR laser. / Hou, Wentao; Xu, Zian; Zhao, Hengyu et al.
In: Optical Materials, Vol. 107, 110017, 09.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review