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Multiwatt, tunable, diode-pumped CW Yb:GdCOB laser

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Abstract.

We demonstrate that Yb-doped Ca4GdO(BO3)3 (GdCOB) crystals are suitable for the development of high-power diode-pumped lasers emitting at around 1.04 μm. A 15%-doped Yb:GdCOB crystal was longitudinally pumped with a cw fiber-coupled diode emitting 10 W at 976 nm. While 5.2 W of diode power was absorbed, we obtained 3.2 W of 1043-μm laser light, with a beam quality factor M2 equal to 3, and 2.5 W in a diffraction-limited beam. Furthermore, the laser is continuously tunable between 1018 and 1086 nm. Thermal effects have been investigated with a Shack–Hartmann wavefront analyser: although thermal lensing is not negligible, it does not affect the performance of the laser with the resonator design we used.

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Authors and Affiliations

  1. Laboratoire Charles Fabry de l’Institut d’Optique UMR 8501 du CNRS, BP 147, 91403 Orsay Cedex, France, , , , , , FR

    S. Chénais, F. Druon, F. Balembois, G. Lucas-Leclin, P. Georges & A. Brun

  2. Laboratoire d’Optique Appliquée (LOA), UMR 7639 du CNRS, Palaiseau, France, , , , , , FR

    M. Zavelani-Rossi, F. Augé & J.P. Chambaret

  3. Laboratoire de Chimie Appliquée de l’État Solide, ENSCP UMR 7574 du CNRS, 11 rue Pierre et Marie Curie, 75231 Paris Cedex, France, , , , , , FR

    G. Aka & D. Vivien

Authors
  1. S. Chénais
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  2. F. Druon
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  3. F. Balembois
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  4. G. Lucas-Leclin
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  5. P. Georges
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  6. A. Brun
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  7. M. Zavelani-Rossi
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  8. F. Augé
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  9. J.P. Chambaret
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  10. G. Aka
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  11. D. Vivien
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Additional information

Received: 1 August 2000 / Revised version: 18 September 2000 / Published online: 21 February 2001

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Chénais, S., Druon, F., Balembois, F. et al. Multiwatt, tunable, diode-pumped CW Yb:GdCOB laser . Appl Phys B 72, 389–393 (2001). https://doi.org/10.1007/s003400100477

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  • DOI: https://doi.org/10.1007/s003400100477

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