Chin. Phys. Lett.  2007, Vol. 24 Issue (6): 1586-1588    DOI:
Original Articles |
Long Optical Delay Lines Enhanced by Ring Configuration in Optical Fibres
DONG Yong-Kang;LU Zhi-Wei;LI Qiang;GAO Wei
Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001
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DONG Yong-Kang, LU Zhi-Wei, LI Qiang et al  2007 Chin. Phys. Lett. 24 1586-1588
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Abstract A long optically controlled delay line enhanced by ring configuration is demonstrated by using the group-velocity control of signal pulses based on stimulated Brillouin scattering. In experiment, two optical fibre ring cavities are used: one is used as the Brillouin laser, providing single-mode Stokes wave as probe wave; the other is used as the Brillouin amplifier, working as slow light medium. We achieve a maximum time delay of 215ns using the ring Brillouin amplifier, five times larger than the input probe pulse width of 40ns. In the meantime, a considerable pulse broadening is observed, which agrees
well with the theoretical prediction based on linear theory.
Keywords: 42.65.Es      42.81.Dp     
Received: 09 December 2006      Published: 17 May 2007
PACS:  42.65.Es (Stimulated Brillouin and Rayleigh scattering)  
  42.81.Dp (Propagation, scattering, and losses; solitons)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2007/V24/I6/01586
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DONG Yong-Kang
LU Zhi-Wei
LI Qiang
GAO Wei
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