| 光纤光栅选频掺Yb3+双包层光纤激光器 |
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| 引用本文： | 付圣贵,范万德,张 强,王 志,李丽君,张春书,袁树忠,董孝义.光纤光栅选频掺Yb3+双包层光纤激光器[J].物理学报,2004,53(12):4262-4267. |
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| 作者姓名： | 付圣贵 范万德 张 强 王 志 李丽君 张春书 袁树忠 董孝义 |
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| 作者单位： | 南开大学现代光学研究所，天津 300071 |
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| 基金项目： | 国家自然科学基金(批准号：60137010)和国家高技术研究发展计划(批准号：2003AA312100)资助的课题. |
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| 摘 要： | 利用相位掩模法，在D形内包层掺Yb3+双包层光纤一端直接写制出Bragg光栅，用作双包层光纤激光器的输出腔镜.试验得到了线宽为0.196nm，波长为1058.2nm，最高输出功率为570mW的稳定激光输出，解决了激光器中模式竞争造成的输出不稳定现象.从速率方程出发，对激光器的输出功率与抽运功率、光栅反射率的关系以及最佳光纤长度进行了理论分析，结果与实验符合很好.
关键词：
双包层光纤光栅
掺Yb3＋双包层光纤激光器
相位掩模
速率方程
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| 关 键 词： | 双包层光纤光栅 掺Yb3＋双包层光纤激光器 相位掩模 速率方程 |
| 收稿时间： | 2004-01-14 |
Yb3+-doped double-clad fiber laser based on fiber Bragg grating |
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| Fu Sheng－Gui,Fan Wan－De,Zhang Qiang,Wang Zhi,Li Li－Jun,Zhang Chun－Shu,Yuan Shu－Zhong,Dong Xiao－Yi.Yb3+-doped double-clad fiber laser based on fiber Bragg grating[J].Acta Physica Sinica,2004,53(12):4262-4267. |
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| Authors: | Fu Sheng－Gui Fan Wan－De Zhang Qiang Wang Zhi Li Li－Jun Zhang Chun－Shu Yuan Shu－Zhong Dong Xiao－Yi |
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| Abstract: | Fiber Bragg grating (FBG) was successfully fabricated in a Yb3+ doped double clad fiber with D-shaped inner-cladding by using phase mask method. Based on the FBG, a stable narrow line width double clad fiber laser was successfully demonstrated which resolved the output instability caused by mode-competition in common double-clad fiber lasers. The maximum output power is 570?mW at the wavelength 1058.2nm with 0.196nm line-band. Based on rate equations, the relationship between output power and pump power, the reflectivity of the FBG and the optimized length of the fiber were analyzed, which were in good agreement with the experimental results.
Keywords：
Double-clad fiber grating
Yb3＋ doped double-clad fiber laser
phase mask method
rate equation |
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| Keywords: | Double-clad fiber grating Yb3＋ doped double-clad fiber laser phase mask method rate equation |
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