| Dual-Wavelength Erbium-Doped Fibre Ring Laser by Cascading Tunable Bandpass Filter with Bandstop Filter |
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| 作者姓名： | 陈国杰 黄德修 张新亮 曹辉 |
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| 作者单位： | [1]Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074 [2]School of Science, Foshan University, Foshan 528000 |
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| 基金项目： | Supported by the National Basic Research Programme of China under Grant No 2006CB302805 |
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| 摘 要： |
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| 关 键 词： | 波长 滤波器 激光 光学 |
| 收稿时间： | 2007-07-22 |
Dual-Wavelength Erbium-Doped Fibre Ring Laser by Cascading Tunable Bandpass Filter with Bandstop Filter |
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| CHEN Guo-Jie,HUANG De-Xiu,ZHANG Xin-Liang,CAO Hui.Dual-Wavelength Erbium-Doped Fibre Ring Laser by Cascading Tunable Bandpass Filter with Bandstop Filter[J].Chinese Physics Letters,2007,24(11):3145-3148. |
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| Authors: | CHEN Guo-Jie HUANG De-Xiu ZHANG Xin-Liang CAO Hui |
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| Institution: | Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074School of Science, Foshan University, Foshan 528000 |
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| Abstract: | A novel fibre ring laser is proposed and successfully demonstrated. By cascading a tunable bandpass filter with a bandstop filter to construct the desired narrow dual-transmission-peak spectrum, and employing a segment of unpumped erbium-doped fibre as a saturable absorber, a stable fibre ring laser is achieved at room temperature. The proposed laser can operate in dual-wavelength with the wavelength spacing of 0.48 nm and the extinction ratio more than 50 dB or switch between the two wavelengths by adjusting a polarization controller. The stability is investigated experimentally and explained theoretically. |
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| Keywords: | 42 55 Wd 42 60 Pk |
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