Han Juhong, Wang You, Cai He, An Guofei, Zhang Wei, Xue Liangping, Wang Hongyuan, Zhou Jie, Jiang Zhigang, Gao Ming
Opt Express. 2015 Apr 6;23(7):9508-15. doi: 10.1364/OE.23.009508.
With high efficiency and small thermally-induced effects in the near-infrared wavelength region, a diode-pumped alkali laser (DPAL) is regarded as combining the major advantages of solid-state lasers and gas-state lasers and obviating their main disadvantages at the same time. Studying the temperature distribution in the cross-section of an alkali-vapor cell is critical to realize high-powered DPAL systems for both static and flowing states. In this report, a theoretical algorithm has been built to investigate the features of a flowing-gas DPAL system by uniting procedures in kinetics, heat transfer, and fluid dynamic together. The thermal features and output characteristics have been simultaneously obtained for different gas velocities. The results have demonstrated the great potential of DPALs in the extremely high-powered laser operation.
二极管泵浦碱金属激光器（DPAL）在近红外波长区域具有高效率和小的热致效应，被认为结合了固态激光器和气态激光器的主要优点，同时消除了它们的主要缺点。研究碱金属蒸汽池横截面上的温度分布对于实现静态和流动状态下的高功率DPAL系统至关重要。在本报告中，通过将动力学、传热和流体动力学过程结合在一起，建立了一种理论算法来研究流动气体DPAL系统的特性。同时获得了不同气体速度下的热特性和输出特性。结果表明DPAL在极高功率激光运行方面具有巨大潜力。
