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hybrid optical limiting

Laser and Particle Beams (1)

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Investigation of optical limiting based on the combination of stimulated Brillouin scattering and carbon nanotube/HT-270 suspension
W.L.J. Hasi, Z.W. Lu, M.L. Fu, H.H. Lu, S. Gong, D.Y. Lin, W.M. He
Journal:

Laser and Particle Beams / Volume 27 / Issue 3 / September 2009

Published online by Cambridge University Press:

24 June 2009, pp. 533-536
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In order to improve the optical limiting performance based on stimulated Brillouin scattering (SBS), a combination of SBS and carbon nanotube/HT-270 suspension for optical limiting is proposed in this paper. The dependence of output energy of optical limiting based on this hybrid approach on the pump energy is numerically simulated, and validated in Continuum's Nd: YAG seed-injected laser. The results indicate that the output energy based on this hybrid approach shows much better performance compared with that based on single SBS. In this approach, the SBS threshold can be controlled by adjusting the gain coefficient of medium and focal length of the lens, and the threshold of suspension can be controlled by altering the concentration and focal length of the lens, therefore, this hybrid approach to realize optical limiting has great potential in practical application.