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Intracavity Raman laser generating a third stokes component at 1.5 μm

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Journal of Applied Spectroscopy Aims and scope

The lasing properties of an intracavity Nd:KGW Raman laser which converts the multimode radiation of an Nd:KGW laser operating on the 4 F 3/2–4 I 11/2 transition into the third Stokes component at a wavelength of 1.5 μm are studied. The energy in the third Stokes component is found to increase essentially linearly with the electrical energy delivered to the flashlamp. Lasing at the third Stokes component begins in the central portion of the Nd:KGW crystal and then propagates to its boundaries. Reducing the geometric aperture of the multimode pump beam in the Raman crystal lowers the divergence of the Stokes emission. For a source pump energy of 6 J, the intracavity Raman laser emits 14.7 mJ pulses of duration 3–4 nsec which are safe to the eyes. The divergence of the Raman laser beam at a level of 86% of the total energy is ≈ 9 mrad.

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Authors and Affiliations

  1. B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, prosp. Nezavisimosti 68, 220072, Minsk, Belarus

    V. I. Dashkevich & V. A. Orlovich

  2. LÉMT private enterprise, Minsk, Belarus

    A. P. Shkadarevich

Authors
  1. V. I. Dashkevich
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  2. V. A. Orlovich
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  3. A. P. Shkadarevich
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Correspondence to V. I. Dashkevich.

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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 76, No. 5, pp. 725–732, September–October, 2009.

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Dashkevich, V.I., Orlovich, V.A. & Shkadarevich, A.P. Intracavity Raman laser generating a third stokes component at 1.5 μm. J Appl Spectrosc 76, 685–691 (2009). https://doi.org/10.1007/s10812-009-9249-0

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  • DOI: https://doi.org/10.1007/s10812-009-9249-0

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