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Growth, spectral properties, and laser demonstration of Nd:GYSO crystal

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Abstract

An Nd:GYSO crystal has been grown by the Czochralski technique. The cell parameters were analyzed with X-ray diffraction (XRD). Room-temperature absorption and fluorescence spectra and fluorescence lifetime of the Nd:GYSO crystal were measured and analyzed. The Judd–Ofelt intensity parameters Ω 2,4,6 were obtained to be 4.06, 4.65, and 3.63×10−20 cm2, respectively. The absorption and emission cross sections and the branching ratios were calculated. The peak-emission cross section is 3.8×10−20 cm2 at 1074 nm with a FWHM of 8.8 nm. Pumped by a laser diode, a maximum 1.54 W continuous-wave (CW) laser output has been obtained with a slope efficiency of 27.4%. All the results show that Nd:GYSO crystal is a promising laser material.

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Authors and Affiliations

  1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China

    D. Z. Li, X. D. Xu, D. H. Zhou, C. T. Xia & F. Wu

  2. Graduate School of Chinese Academy of Sciences, Beijing, 100039, China

    D. Z. Li & D. H. Zhou

  3. School of Electronics and Electrical Engineering, Nanyang Technological University, Singapore, 639798, Singapore

    Z. H. Cong, J. Zhang & D. Y. Tang

  4. Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China

    J. Xu

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  1. D. Z. Li
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Correspondence to X. D. Xu.

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Li, D.Z., Xu, X.D., Cong, Z.H. et al. Growth, spectral properties, and laser demonstration of Nd:GYSO crystal. Appl. Phys. B 104, 53–58 (2011). https://doi.org/10.1007/s00340-010-4302-5

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  • DOI: https://doi.org/10.1007/s00340-010-4302-5

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