High-repetition-rate kHz electro-optically Q-switched Ho, Pr: YLF 2.9 μm bulk laser

被引：2
|
作者：
Nie, Hongkun [1 ]
Shi, Bingnan [1 ]
Xia, Haiping [2 ]
Hu, Jianxu [2 ]
Zhang, Baitao [1 ]
Yang, Kejian [1 ]
He, Jingliang [1 ]
机构：
[1] Shandong Univ, Inst Crystal Mat, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China
来源：
OPTICS EXPRESS | 2018年 / 26卷 / 26期
基金：
中国国家自然科学基金;
关键词：
SATURABLE ABSORBER; FIBER LASER; BLACK PHOSPHORUS; POWER; SPECTROSCOPY; STATE;
D O I：
10.1364/OE.26.033679
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this study, we operated a novel bulk laser: a dual-end-pumped electro-optically (EO) Q-switched Ho, Pr:YLF laser at 2945.9 nm with a repetition rate of kHz level. The shortest pulse duration of 25.2 ns was obtained at the repetition rate of 500 Hz. corresponding to a single pulse energy of 0.4 mJ and a peak power of 15.9 kW. A maximum output power of 268 mW was delivered at the repetition rate of 1.5 kHz. The beam quality factors of the EO Q-switched Ho, Pr:YLF laser at the maximum output power were M-x(2) = 1.50 and M-y(2) = 1.54 in x- and y- directions, respectively. The long-term output power instability was measured to be +/- 1.5% (RMS) within five hours. The achieved results indicated the promising potential of Ho, Pr: YLF crystals for high repetition rate Q-switched mid-infrared laser pulse generation very well. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：33671 / 33677
页数：7
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