| Wide-band double-pass discrete Raman amplifier with reflection of signals and pumps |
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| 作者姓名： | 王著元 崔一平 |
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| 作者单位： | Department of Electronic Engineering，Southeast University，Nanjing 210096，Department of Electronic Engineering，Southeast University，Nanjing 210096 |
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| 基金项目： | This work was supported by the National Science Foun- dation of China for Distinguished Young Scholars under Grant No. 60125513. |
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| 摘 要： | A wide-band (1530-1610 nm) and high efficient double-pass discrete Raman amplifier is reported. In this Raman amplifier, by using a one-end gilded fiber as the broadband reflector, signals and multi-pump are both reflected to propagate through the gain fiber for a second time. An increase in net gain of more than 150% has been achieved compared with that in the typical co-pumped Raman amplifier. The advantages of this proposed new configuration have been experimentally studied by comparing with the recently existing Raman amplifier configurations.
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