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首页> 外文会议>Photonics, devices, and systems V >Diamond Raman laser in eye safe region
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Diamond Raman laser in eye safe region

机译：钻石拉曼激光在眼睛安全区域

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摘要

The goal of this work was the external cavity CVD diamond Raman laser generating at wavelength of 1.63 μm which belongs to an eye safe region. As the Raman medium a sample of CVD grown single diamond crystal was used. The crystal was grown in the [100] direction and after cutting, the sample sides were formed by {110} planes. The diamond crystal sample dimensions were 5 mm × 5 mm × 2 mm and it had no anti-reflection coatings. As a pumping radiation source the compact Q-switched NdrYAP laser operating at the wavelength 1.34 μm was used. The pulse duration was 12 ns. This pumping radiation was focused by the lens (f = 250 mm) perpendicularly on the diamond crystal face. The beam radius inside the crystal was 180 μm. The 15 mm long Raman laser resonator was formed by a pumping mirror (HR @ 1.63 μm and T = 97 % @ 1.34 μm) and an output coupler (R = 95 % @ 1.63 μm, r = 500 mm). The maximum generated laser output energy was 18 μJ @ 1.63 μm for the pumping energy of 3.35 mJ corresponding to the conversion efficiency of 0.5 %. The output spatial beam profile corresponds to the fundamental Gaussian beam in both axes.
机译：这项工作的目标是在1.63μm波长处产生的外腔CVD金刚石拉曼激光，该激光属于人眼安全区域。作为拉曼介质，使用了CVD生长的单金刚石晶体的样品。晶体沿[100]方向生长，切割后，样品侧面由{110}平面形成。金刚石晶体样品的尺寸为5 mm×5 mm×2 mm，并且没有防反射涂层。作为泵浦辐射源，使用了波长为1.34μm的紧凑型Q开关NdrYAP激光器。脉冲持续时间为12 ns。该泵浦辐射被透镜（f = 250 mm）垂直聚焦在金刚石晶体的表面上。晶体内部的束半径为180μm。 15毫米长的拉曼激光谐振器由泵浦反射镜（HR @ 1.63μm，T = 97％@ 1.34μm）和输出耦合器（R = 95％@ 1.63μm，r = 500 mm）形成。对于3.35 mJ的泵浦能量，最大产生的激光输出能量为18μJ@ 1.63μm，对应于0.5％的转换效率。输出的空间光束轮廓在两个轴上都对应于基本高斯光束。

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  • 来源
    《Photonics, devices, and systems V》|2011年|p.83060G.1-83060G.5|共5页
  • 会议地点 Prague(CS)
  • 作者

    Helena Jelinkova; Ondfej Kitzler; Michal Jelfnek; Jan Sulc; Michal Nemec; Vaclav Kubecek;

  • 作者单位

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

    Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering Brehova 7,115 19 Prague 1, Czech Republic;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程光学;
  • 关键词

    stimulated raman scattering; CVD diamond; diamond raman laser; Nd:YAP Q-switched laser; eye safe wavelength;

    机译：拉曼散射CVD金刚石；金刚石拉曼激光器Nd：YAP调Q激光器；眼睛安全波长;

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