Czochralski growth and optical investigations of Er3+:GdTaO4 laser crystal

Huajun Yang; Qingli Zhang; Pengyu Zhou; Kaijie Ning; Jinyun Gao; Ye He; Jianqiao Luo; Dunlu Sun; Shaotang Yin

doi:10.1117/12.910450

12 January 2012 Czochralski growth and optical investigations of Er³⁺:GdTaO₄ laser crystal

Huajun Yang, Qingli Zhang, Pengyu Zhou, Kaijie Ning, Jinyun Gao, Ye He, Jianqiao Luo, Dunlu Sun, Shaotang Yin

Proceedings Volume 8206, Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers; 820626 (2012) https://doi.org/10.1117/12.910450
Event: Pacific Rim Laser Damage Symposium: Optical Materials for High Power Lasers, 2011, Shanghai, China

Abstract

Highly doped Er³⁺:GdTaO₄ crystal was grown successfully by the Czochralski(CZ) method for the first time. The crystal structure was determined by Rietveld refinement to X-ray powder diffraction. The absorption and photoluminescence spectra at room temperature were investigated. The Judd-Ofelt transition intensity parameters Ω_t (t=2, 4, 6) were fitted to its absorption spectrum. With parameters Ω_t, the oscillator strengths, fluorescence branching ratios, transition probabilities and the lifetimes of Er3+:GdTaO4 were calculated. The near-infrared and mid-infrared fluorescence properties were also analyzed and discussed. The results show that the Er³⁺:GdTaO₄ crystal may be regarded as a potential solid-state laser material for 2.6μm.

Citation Download Citation

Huajun Yang, Qingli Zhang, Pengyu Zhou, Kaijie Ning, Jinyun Gao, Ye He, Jianqiao Luo, Dunlu Sun, and Shaotang Yin "Czochralski growth and optical investigations of Er³⁺:GdTaO₄ laser crystal", Proc. SPIE 8206, Pacific Rim Laser Damage 2011: Optical Materials for High Power Lasers, 820626 (12 January 2012); https://doi.org/10.1117/12.910450

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