| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Stimulated Raman Backscattering Amplification Using Multiple Pump Pulses |
| GE Zhe-Yi, YIN Yan**, CHEN De-Peng, ZHUO Hong-Bin, MA Yan-Yun, SHAO Fu-Qiu |
Department of Physics, National University of Defense Technology, Changsha 410073
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| Cite this article: |
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GE Zhe-Yi, YIN Yan, CHEN De-Peng et al 2012 Chin. Phys. Lett. 29 015201 |
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Abstract A multiple-pump-pulses-stimulated Raman backscattering amplification (m-SRA) scheme is proposed and examined using 1D PIC simulations. Compared with the SRA using a single long pump pulse, higher energy conversion efficiency can be obtained with the same output laser intensity by employing the m-SRA scheme. Unwanted Raman forward scattering can be suppressed in the m-SRA case. Favorable pulse envelope and frequency characteristics of the seed pulse after amplification are obtained by using the m-SRA scheme.
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| Keywords:
52.35.Mw
52.65.Rr
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Received: 02 September 2011
Published: 07 February 2012
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| PACS: |
52.35.Mw
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(Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.))
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52.65.Rr
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(Particle-in-cell method)
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