Investigation on the effect of beam divergence angle upon output waveform based on stimulated Brillouin scattering optical limiting |
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Authors: | Hasi Wu-Li-Ji Lu Huan-Huan Gong Sheng Fu Mei-Ling Lü Zhi-Wei Lin Dian-Yang He Wei-Ming |
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Institution: | Institute of Opto-electronics, Harbin Institute of Technology, Harbin 150001, China |
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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. |
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Keywords: | stimulated Brillouin scattering optical limiting waveform beam divergence angle |
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