| S-Band Gain-Flattened Double-Pass Discrete Fibre Raman Amplifiers Using Mechanically Induced Long-Period Fibre Gratings |
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| 作者姓名： | 李勇男 吕福云 范宇 王新伟 魏岱 |
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| 作者单位： | Institute of Physics, Nankai University, Tianjin 300071 |
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| 基金项目： | Supported by the Key Laboratory of 0pto-Electronic Information Science and Technology （Nankai University, Tianjin University）, Ministry of Education of China, and the Tianjin Key Project of China under Grant 033183611. |
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| 摘 要： | We experimentally demonstrate an S-band double-pass （DP） discrete fibre Raman amplifier （FRA） gain-flattened by using a mechanically induced long-period fibre grating （LPFG）. Due to a photo-elastic effect in the fibre and its peak loss, the wavelength and depth of the mechanically induced LPFG are continuously regulated by varying the pressures, the angle of the fibre on the graphite rods which are used to produce the periodical pressures along the fibre, the number and the diameter of the graphite rods. Using this gain flattening filter, the gain profile of the DP-FRA is flattened to within ±0.8 dB in the wavelength range from 1485 nm to 1525 nm.
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| 关 键 词： | 双通离散光纤拉曼放大器 光栅 S波带 长周期 光子弹性效应 |
| 收稿时间： | 2005-12-31 |
| 修稿时间： | 2005-12-31 |
S-Band Gain-Flattened Double-Pass Discrete Fibre Raman Amplifiers Using Mechanically Induced Long-Period Fibre Gratings |
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| LI Yong-Nan, LU Fu-Yun, FAN Yu, WANG Xin-Wei, WEI Dai.S-Band Gain-Flattened Double-Pass Discrete Fibre Raman Amplifiers Using Mechanically Induced Long-Period Fibre Gratings[J].Chinese Physics Letters,2006,23(4):842-844. |
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| Authors: | LI Yong-Nan LU Fu-Yun FAN Yu WANG Xin-Wei WEI Dai |
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