中国激光, 2009, 36 (7): 1679, 网络出版: 2009-07-16
全固态激光直接抽运技术的发展和研究现状
Overview on Laser Diode Pumped Solid-State Laser with Direct Pumping Scheme
全固态激光技术 直接抽运 四能级激光运转 准三能级激光运转 all-solid-state laser technique direct pumping scheme four-lever laser operation quasi-three-level laser operation
摘要
如何有效地减少抽运过程和激光发射过程中激光介质内产生的热量, 是全固态高功率激光研究过程中所面临的主要难题之一。与传统波长的抽运方式相比, 采用长波长的直接抽运技术不但可使激光介质中产生的热量减少30%~50%, 而且还可显著改善激光的输出特性。以最常用的Nd3+激光器的研究作为切入点, 简述了直接抽运技术的研究发展, 介绍了直接抽运技术相对于传统抽运技术的优缺点以及目前的研究现状, 最后对未来的发展前景作了初步分析和展望。
Abstract
It is one of the most important questions to reduce the thermal effect and accumulation in the laser medium effectively, by pumping and lasing in the research of laser diode pump solid-state laser (DPSSL) at high power laser level. Compared with the conventional pumping scheme, direct pumping scheme at longer wavelength will not only reduce the heat by 30%~50%, but also improve the laser performances significantly. The development and status of direct pumping DPSSL based on the research of the Nd3+ doping laser are reviewed, the characteristics of the new pumping scheme and the progresses on Nd doping lasers are introduced. Finally, the new development in the future is prospected.
何坤娜, 魏志义, 张治国, 高春清. 全固态激光直接抽运技术的发展和研究现状[J]. 中国激光, 2009, 36(7): 1679. He Kunna, Wei Zhiyi, Zhang Zhiguo, Gao Chunqing. Overview on Laser Diode Pumped Solid-State Laser with Direct Pumping Scheme[J]. Chinese Journal of Lasers, 2009, 36(7): 1679.