| Long Optical Delay Lines Enhanced by Ring Configuration in Optical Fibres |
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| 作者姓名： | 董永康 吕志伟 李强 高玮 |
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| 作者单位： | Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10476009, and the Programme for Excellent Team in Harbin Institute of Technology. |
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| 摘 要： | 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.
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| 关 键 词： | 光纤维 光学 光线 结构模型 |
| 收稿时间： | 2006-12-9 |
| 修稿时间： | 2006-12-09 |
Long Optical Delay Lines Enhanced by Ring Configuration in Optical Fibres |
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| DONG Yong-Kang,LU Zhi-Wei,LI Qiang,GAO Wei.Long Optical Delay Lines Enhanced by Ring Configuration in Optical Fibres[J].Chinese Physics Letters,2007,24(6):1586-1588. |
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| Authors: | DONG Yong-Kang LU Zhi-Wei LI Qiang GAO Wei |
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| Institution: | Institute of Opto-Electronics, Harbin Institute of Technology, Harbin 150001 |
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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 agreeswell with the theoretical prediction based on linear theory. |
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| Keywords: | 42 65 Es 42 81 Dp |
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