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A new measurement of stimulated Brillouin scattering phase conjugation fidelity for high pump energies

  • Y.L. Wang (a1), Z.W. Lu (a1), W.M. He (a1), Z.X. Zheng (a1) and Y.H. Zhao (a1)...


In order to measure the phase conjugation-fidelity of stimulated Brillouin scattering with high pump energy more accurately and conveniently, a new measurement is proposed. According to the definition of the fidelity with optical field correlated integral, the method of recording the far-field by array camera is analyzed theoretically. By the method, an experiment for high energy stimulated Brillouin scattering is arranged, and the maximum energy of 3.42 J is achieved in a single-cell stimulated Brillouin scattering generator. For small pump pulse, the fidelity maintains a high value of more than 0.9. However, the reflectivity fluctuation is significant when the pump energy is larger than 1.5 J. As a result, the fidelity decreases gradually to 0.5 at the pump energy of 3.42 J. The reflectivity shows the same character of great fluctuation as the fidelity at high pump energy.


Corresponding author

Address correspondence and reprint requests to: Zhiwei Lu, Institute of Opto-Electronics, Harbin Institute of Technology, P. O. Box 3031. Harbin 150080, China. E-mail:


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A new measurement of stimulated Brillouin scattering phase conjugation fidelity for high pump energies

  • Y.L. Wang (a1), Z.W. Lu (a1), W.M. He (a1), Z.X. Zheng (a1) and Y.H. Zhao (a1)...


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