| Controllable optical delay line using a Brillouin optical fiber ring laser |
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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，Institute of Opto-Electronics，Harbin Institute of Technology，Harbin 150001，Institute of Opto-Electronics，Harbin Institute of Technology，Harbin 150001，Institute of Opto-Electronics，Harbin Institute of Technology，Harbin 150001 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant No. 10476009. |
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| 摘 要： | A controllable optical delay line using a Brillouin optical fiber ring laser is demonstrated and a large time delay is obtained by cascading two optical fiber segments. In experiment, a single-mode Brillouin optical fiber ring laser is used to provide Stokes wave as probe wave. We achieve a maximum tunable time delay of 61 ns using two cascading optical fiber segments, about 1.5 times of the input probe pulse width of 40 ns. In the meantime, a considerable pulse broadening is observed, which agrees well with the theoretical prediction based on linear theory.
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