| 基于重叠光栅的双波长掺铒光子晶体光纤激光器 |
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| 引用本文： | 王枫,毕卫红,付兴虎,付广伟,江鹏,武洋,王莹.基于重叠光栅的双波长掺铒光子晶体光纤激光器[J].红外与激光工程,2016,45(8):822001-0822001(5). |
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| 作者姓名： | 王枫 毕卫红 付兴虎 付广伟 江鹏 武洋 王莹 |
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| 作者单位： | 1.河北科技师范学院 机电工程学院,河北 秦皇岛 066004; |
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| 基金项目： | 国家自然科学基金（61475133，61575170）;河北省高等学校青年拔尖人才计划（BJ2014057）;燕山大学野新锐工程冶人才支持计划 |
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| 摘 要： | 提出了一种基于光纤重叠光栅的双波长光子晶体光纤激光器。激光器采用线形腔结构，掺铒光子晶体光纤为激光器的增益介质，反射率均高于99%的光纤重叠光栅用作激光器的波长选择器件。基于增益均衡技术，抑制谐振腔内的模式竞争，在室温下获得了稳定的双波长激光同时输出。实验结果表明:其3 dB线宽小于0.02 nm，30 dB线宽小于0.25 nm，SMSR为54.34 dB，双波长激光的中心波长间隔为0.932 nm。该双波长激光器输出的双波长激光具有较好的稳定性。
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| 关 键 词： | 光纤激光器 双波长 掺铒光子晶体光纤 重叠光栅 |
| 收稿时间： | 2015-12-12 |
Dual-wavelength Er3+-doped photonic crystal fiber laser based on superimposed fiber gratings |
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| Affiliation: | 1.College of Mechanical Electrical and Engineering,Hebei Normal University of Science & Technology,Qinhuangdao 066004,China;2.School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China |
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| Abstract: | A new type of dual-wavelength photonic crystal fiber laser was proposed and demonstrated, based on superimposed fiber gratings. Linear cavity structure was used to induce the laser, Er3+-doped Photonic Crystal Fiber was used as the gain medium, and two superimposed fiber gratings whose reflectivity were higher than 99% were used for wavelength selection. Based on gain equalization technologies, modal competition in the cavity was suppressed to realize dual-wavelength laser at room temperature. The 3 dB line-wide is less than 0.02 nm, 30 dB line-wide is less than 0.25 nm, and SMSR is 54.34 dB. The wavelength interval of dual-wavelength laser is 0.932 nm. The experimental result show that the wavelength and the laser energy of the dual-wavelength laser are stable. |
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