钛宝石激光抽运的被动锁模Tm:YAG陶瓷激光实验研究 = Ti : sapphire pumped passively mode-locked Tm : YAG ceramic laser
詹敏杰 Zhan, Min-Jie
邹育婉 Zou, Yu-Wan
林清峰 Lin, Qing-Feng
王兆华 Wang, Zhao-Hua
韩海年 Han, Hai-Nian
吕亮 Lü, Liang
魏志义 Wei, Zhi-Yi
章建 Zhang, Jian
唐定远 Tang, Dingyuan
Date of Issue2014
School of Electrical and Electronic Engineering
本文采用连续钛宝石激光作抽运, 掺杂浓度为6 at.%、长度为2.7 mm的Tm:YAG陶瓷作增益介质, 通过引入半导体饱和吸收体获得了稳定的被动锁模运转. 实验中获得的激光锁模功率为 116.5 mW, 中心波长为2007 nm, 重复频率为109 MHz, 通过自行搭建的腔外非共线强度自相关测量得到的脉冲宽度是55 ps. A passively mode-locked Tm:YAG ceramic laser was demonstrated. Employing a 6 at.% Tm3+-doped sample with a length of 2.7 mm, we have realized stable mode-locked pulses with a repetition rate of 109 MHz by a semiconductor saturable absorber. A maximum output power of 116.5 mW was obtained at the central wavelength of 2007 nm. The corresponding pulse duration was determined to be 55 ps by a self-built noncollinear intensity auto-correlation setup. It is shown that Tm:YAG ceramics are excellent laser materials which can be used in ultrafast lasers with high-power and high-efficiency output.
Wuli xuebao/Acta physica sinica
© 2014 中国物理学会 Chinese Physical Society. This paper was published in Wuli Xuebao/Acta Physica Sinica and is made available as an electronic reprint (preprint) with permission of 中国物理学会 Chinese Physical Society. The paper can be found at the following official DOI: [http://dx.doi.org/10.7498/aps.63.014205]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.