外文题目: Investigation of pre-pulse pumping laser for preserving temporal waveform of stimulated Raman scattering
作者: Chen, Junchi; Su, Hongpeng; Peng, Yujie; Guo, Xiaoyang; Wang, Zhanshan; Leng, Yuxin
刊名: Laser Phys.
年: 2017 卷: 27 期: 1 文章编号：15402
英文关键词:
stimulated Raman scattering; pre-pulse pumping laser; Ba(NO3)(2) crystal; temporal waveform
OPERATION; DIAMOND; AMPLIFICATION; CRYSTALS; DESIGN
英文摘要:
A modified polarized beam combination technique is proposed for preserving the temporal waveforms of stimulated Raman scattering. 1064 nm pre-pulse pumping lasers prior to the main pumping laser with a delay time are generated and injected into a Ba(NO3)(2) Raman medium to excite the crystal firstly. The influences of pre-pulse lasers with various energy levels on the temporal shapes of Raman lasers are investigated, and it is demonstrated that the temporal waveforms of the Raman laser are distorted once the energies of the pre-pulse are below and above the required energy for preserving the temporal shapes of Stokes radiation. It is also discovered that the temporal shape of the 1197 nm Raman laser cannot be perfectly preserved if the energy of the 1064 nm main laser is too low or the relative delay time is too large. Moreover, the optical conversion efficiency and Stokes laser energy obtained under pumping lasers with single and double intensity peaks are compared.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1088/1555-6611/27/1/015402


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