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Slope efficiency of up to 73% for Yb:Ca4YO(BO3)3 crystal laser pumped by a laser diode

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Abstract.

Yb:Ca4YO(BO3)3 (Yb:YCOB) crystal with good quality and large size has been grown by the Czochralski method. The polarization absorption and fluorescence spectra have been measured. The laser action of the Yb:YCOB crystal has been demonstrated when it is pumped by a fiber-coupled laser diode (LD) at the wavelength of 976.4 nm. The pumping threshold is 55 mW, the light-light conversion efficiency is 58.7%, and a slope efficiency of up to 73% is thus calculated.

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Authors and Affiliations

  1. National Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, 250100, P.R. China (Fax: +86-531/8565-403, E-mail: xlmeng@icm.sdu.edu.cn), , , , , , CN

    H. Zhang, X. Meng, L. Zhu, X. Liu, R. Cheng, S. Zhang & L. Sun

  2. Center for Lasers and Applications, Macquarie University, NSW2109, Australia, , , , , , AU

    P. Wang, J. Dawes & P. Dekker

Authors
  1. H. Zhang
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  2. X. Meng
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  3. P. Wang
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  4. L. Zhu
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  5. X. Liu
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  6. R. Cheng
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  7. J. Dawes
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  8. P. Dekker
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  9. S. Zhang
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  10. L. Sun
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Additional information

Received: 16 December 1998 / Revised version: 4 February 1999 / Published online: 7 April 1999

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Zhang, H., Meng, X., Wang, P. et al. Slope efficiency of up to 73% for Yb:Ca4YO(BO3)3 crystal laser pumped by a laser diode . Appl Phys B 68, 1147–1149 (1999). https://doi.org/10.1007/s003400050759

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  • DOI: https://doi.org/10.1007/s003400050759

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