| LD泵浦不同腔结构高效运转掺铥光纤激光器 |
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| 引用本文： | 陶蒙蒙,黄启杰,余婷,杨鹏翎,陈卫标,叶锡生.LD泵浦不同腔结构高效运转掺铥光纤激光器[J].红外与激光工程,2013,42(8):2008-2011. |
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| 作者姓名： | 陶蒙蒙 黄启杰 余婷 杨鹏翎 陈卫标 叶锡生 |
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| 作者单位： | 1.西北核技术研究所 激光与物质相互作用国家重点实验室,陕西 西安 710024; |
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| 基金项目： | 激光与物质相互作用国家重点实验室室控预研基金 |
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| 摘 要： | 研究了掺铥光纤激光器的不同谐振腔结构方式。使用LD泵浦，分别采用双色镜和端面反射、高反光纤光栅和端面反射以及双色镜和低反光纤光栅构成激光器谐振腔，均获得了超过Stokes极限的斜效率。其中双色镜和端面反射腔结构下获得了最高斜效率56.9%，对应的量子效率为142%。三种腔结构下，激光光谱线宽由激光器系统所采用的反射腔的光谱特性所决定。在双色镜和端面反射腔结构下，激光器在双色镜的高反带宽内随机起振，光谱较宽；在使用光纤布拉格光栅作为激光器谐振腔的高反射腔镜和低反射腔镜的情况下，激光器都获得了2 m处的窄线宽输出，线宽受限于所使用的光纤光栅的反射带宽。
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| 关 键 词： | LD泵浦 掺铥光纤激光器 光纤布拉格光栅 |
| 收稿时间： | 2012-12-15 |
LD clad-pumped high efficient Tm-doped fiber lasers with different laser cavities |
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| Tao Mengmeng
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Huang Qijie
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Yu Ting
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Yang Pengling
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Chen Weibiao
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Ye Xisheng.LD clad-pumped high efficient Tm-doped fiber lasers with different laser cavities[J].Infrared and Laser Engineering,2013,42(8):2008-2011. |
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| Authors: | Tao Mengmeng Huang Qijie Yu Ting Yang Pengling Chen Weibiao Ye Xisheng |
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| Affiliation: | 1.State Key Laboratory of Laser Interaction with Matter,Northwest Institute of Nuclear Technology,Xi'an 710024,China;2.Research Center of Space Laser Information Technology,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China |
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| Abstract: | LD clad-pumped high efficient Tm-doped fiber lasers with quantum efficiencies beyond the Stokes Limit were reported. Different laser cavities, including dichroic mirror with fiber end reflection, high reflective fiber Bragg grating(FBG) with fiber end reflection and dichroic mirror with low reflective FBG, were studied. A maximum slope efficiency of 56.9% was obtained with the dichroic mirror and the fiber end flection forming the laser cavity, corresponding to a quantum efficiency of 142%. Spectral linewidth of the laser output was closely related to the reflective mirrors used in different cavities. Selected by the broadband dichroic mirror, the laser resonated randomly with the high reflective band of the dichroic mirror. With an FBG as the high reflective mirror of the laser cavity, narrow linewidth of 38 pm was attained at an output of 1 W. In another laser configuration, one low reflective FBG was exploited as the output coupler, and narrow linewidth of 69 pm was achieved at an output of 0.9 W. And the laser linewidth was limited by the reflection bandwidth of the FBG used. |
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| Keywords: | LD clad-pump Tm-doped fiber lasers fiber Bragg grating |
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