Abstract This paper investigates the effect of beam divergence angle on output waveform based on stimulated Brillouin scattering optical limiting. Output waveforms in the case of different pump divergence angles are numerically simulated, and validated in a Nd:YAG seed-injected laser system. The results indicate that a small pump divergence angle can lead to good interaction between pump and Stokes, and a platform can be easily realized in the transmitted waveform. In contrast, a peak followed by the platform appears when the divergence angle becomes large.
Received: 09 December 2008
Revised: 24 December 2008
Accepted manuscript online:
Fund: Project
supported by the National Natural Science Foundation of China (Grant
Nos 60778019 and 60878005), the Program for New Century Excellent
Talents in University of China (Grant No NCET-08-0173) and the
Program of Excellent Team in Harbin Institute of Technology of
China.
Cite this article:
Hasi Wu-Li-Ji(哈斯乌力吉), Lu Huan-Huan(鲁欢欢), Gong Sheng(公胜), Fu Mei-Ling(付美玲), ü Zhi-Wei(吕志伟), Lin Dian-Yang(林殿阳), and He Wei-Ming(何伟明) Investigation on the effect of beam divergence angle upon output waveform based on stimulated Brillouin scattering optical limiting 2009 Chin. Phys. B 18 2835
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
