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Single-mode output power enhancement of an extended cavity broad-area laser diode by an intracavity photorefractive crystal

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Abstract

Brightness improvement of high-power semiconductor lasers can be achieved by placing a broad-area laser diode, used as a pure optical amplifier, in an extended cavity. We report the modal behavior of an extended cavity which contains a photorefractive crystal. The dynamic holographic medium that plays the role of a spatial and spectral filter acts on the transverse and axial structure of the extended cavity modes and improves the single-mode operating range of the laser. An enhancement of the brightness in single-mode operation by a factor of seven has been experimentally observed thanks to the intracavity photorefractive crystal.

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Authors and Affiliations

  1. Laboratoire Charles Fabry de l’Institut d’Optique, CNRS, Université Paris-Sud, Campus Polytechnique, RD128, 91127, Palaiseau Cedex, France

    V. Reboud, N. Dubreuil, P. Fournet, G. Pauliat & G. Roosen

  2. F.E.E. GmbH, Struthstr. 2, 55743, Idar-Oberstein, Germany

    D. Rytz

Authors
  1. V. Reboud
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  2. N. Dubreuil
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  3. P. Fournet
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  4. G. Pauliat
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  5. G. Roosen
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  6. D. Rytz
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Corresponding author

Correspondence to N. Dubreuil.

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PACS

42.40.Eq; 42.65.Hw; 42.55.Px

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Reboud, V., Dubreuil, N., Fournet, P. et al. Single-mode output power enhancement of an extended cavity broad-area laser diode by an intracavity photorefractive crystal. Appl. Phys. B 87, 233–237 (2007). https://doi.org/10.1007/s00340-007-2603-0

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  • DOI: https://doi.org/10.1007/s00340-007-2603-0

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