• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Annual solid state and diode laser technology review;SSDLTR 2009; 20090629-0702;20090629-0702; Newton, MA(US);Newton, MA(US) >975-nm Surface-Emitting Distributed Feedback (SE-DFB) Laser and Array
【24h】

975-nm Surface-Emitting Distributed Feedback (SE-DFB) Laser and Array

机译：975 nm表面发射分布式反馈（SE-DFB）激光器和阵列

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It has been an aspiration of semiconductor laser research to achieve high power with high beam quality from broad-area lasers. However, filamentation and multimode instability have prevented achieving this goal. We have designed a surface-emitting distributed feedback (SE-DFB) laser with curved grating that forms an unstable resonator, allowing us to extract high power with high beam quality due to suppression of both filamentation and multimode instability. We will present our latest result of record 73 W of continuous wave (CW) power at 975 nm from a single SE-DFB laser. Typical spectral width of these devices is 0.2 nm at the full width at half maximum (FWHM) and the spectral shift is 0.065 nm/C. We have also designed two-dimensional arrays of SE-DFB lasers for fiber laser pumping since the spatial and spectral brightness of these pump sources are an ideal match for high-power fiber lasers. These arrays are also very suitable for applications such as thin disk laser pumping that require high power with stable and narrow spectral output compared to edge-emitting broad-area laser arrays.
机译：半导体激光器的研究愿望是从广域激光器获得高功率和高光束质量。但是，细丝化和多模不稳定性阻碍了这一目标的实现。我们设计了带有弯曲光栅的表面发射分布式反馈（SE-DFB）激光器，该激光器形成了不稳定的谐振器，由于抑制了灯丝和多模不稳定性，我们可以提取具有高光束质量的高功率。我们将展示由单个SE-DFB激光器在975 nm处记录的73 W连续波（CW）功率的最新结果。这些器件的典型光谱宽度在半峰全宽（FWHM）处为0.2 nm，光谱位移为0.065 nm / C。我们还设计了SE-DFB激光器的二维阵列，用于光纤激光器的泵浦，因为这些泵浦源的空间和光谱亮度非常适合大功率光纤激光器。这些阵列也非常适合诸如薄盘激光泵浦之类的应用，与边缘发射的广域激光阵列相比，这种应用需要高功率且光谱输出稳定且窄。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号