由二极管泵浦的1.9微米铥激光器共振泵浦的50毫焦调Q 2.09微米钬激光器。

50-mJ, Q-switched, 2.09-microm holmium laser resonantly pumped by a diode-pumped 1.9-microm thulium laser.

作者信息

Budni P A, Ibach C R, Setzler S D, Gustafson E J, Castro R T, Chicklis E P

机构信息

BAE Systems, PO Box 868, Nashua, New Hampshire 03060-0868, USA.

出版信息

Opt Lett. 2003 Jun 15;28(12):1016-8. doi: 10.1364/ol.28.001016.

DOI:10.1364/ol.28.001016

PMID:12836764

Abstract

We report >50-mJ Q-switched energy output from a 2.09-microm Ho:YAG oscillator, resonantly pumped at 1.9-microm by a diode-pumped Tm:YLF laser. We demonstrate a Q-switched-to-normal-mode extraction efficiency of 100% at an output energy of 30 mJ and over 64% at the 50-mJ output level. Operating at 50 mJ (60 Hz) of output, a pulse width of 14 ns is achieved from the holmium oscillator, which corresponds to approximately 3.6 MW of peak power. At the 50-mJ output level, a beam-propagation factor M2 approximately 1.2 is achieved.

摘要

我们报道了一台2.09微米钬：钇铝石榴石（Ho:YAG）振荡器的调Q能量输出超过50毫焦，该振荡器由二极管泵浦的1.9微米铥：钇锂氟化物（Tm:YLF）激光器共振泵浦。我们证明，在30毫焦的输出能量下，调Q到正常模式的提取效率为100%，在50毫焦的输出水平下超过64%。钬振荡器在50毫焦（60赫兹）的输出功率下运行时，脉冲宽度为14纳秒，对应于约3.6兆瓦的峰值功率。在50毫焦的输出水平下，光束传播因子M²约为1.2。