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Investigations on coherence of stimulated Brillouin scattering excited by a single-mode-pulsed laser

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Abstract

We experimentally studied the temporal coherence of stimulated Brillouin scattering (SBS) excited by a single-longitude-mode laser. We found that the temporal coherence of SBS is variable but not fixed. In a certain range above the threshold pump energy in which the pulse of the Stokes component is Fourier limited, the coherence length is considerably long, although the temporal coherence decreases with increasing pulse compression rate. If the Fourier transform condition is not satisfied for the pulse of the Stokes component, the temporal coherence decreases rapidly, and the coherence length is much shorter.

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Acknowledgments

The authors would like to thank the National Advanced Technology Program (grant no. 2009AA09Z101) and National Natural Science Foundation of China (grant nos. 10904003 and 60778049) for financial support.

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Authors and Affiliations

  1. Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hang Kong University, Nanchang, 330063, China

    Lei Zhang, Dong Zhang, Jiulin Shi & Dahe Liu

  2. Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing, 100875, China

    Lei Zhang, Dong Zhang, Jinwei Shi, Wenping Gong & Dahe Liu

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  1. Lei Zhang
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  2. Dong Zhang
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  3. Jiulin Shi
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  4. Jinwei Shi
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  5. Wenping Gong
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  6. Dahe Liu
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Correspondence to Dahe Liu.

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Zhang, L., Zhang, D., Shi, J. et al. Investigations on coherence of stimulated Brillouin scattering excited by a single-mode-pulsed laser. Appl. Phys. B 109, 137–141 (2012). https://doi.org/10.1007/s00340-012-5123-5

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  • DOI: https://doi.org/10.1007/s00340-012-5123-5

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