The effects of energy transfer upconversion on end-pumped Q-switched Tm, Ho : YLF lasers

被引：12
作者：
Zhang, Xinlu [1 ]
Wang, Yuezhu [2 ]
Li, Li [1 ]
Ju, Youlun [2 ]
Peng, Yufeng [1 ]
机构：
[1] Harbin Engn Univ, Coll Sci, Harbin 150001, Peoples R China
[2] Harbin Inst Technol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Peoples R China
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 02期
关键词：
SOLID-STATE LASERS; HEAT-GENERATION; YAG; SPECTROSCOPY; TM; HO-YAG;
D O I：
10.1088/0022-3727/42/2/025107
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Based on the model of continuous wave end-pumped quasi-three-level system, the influence of energy transfer upconversion (ETU) on diode-end-pumped actively Q-switched Tm, Ho : YLF lasers is investigated by the rate equation analysis. The analytical expressions of the fractional thermal loading and the pulse energy are obtained. The influences of ETU on the fractional thermal loading and the output pulse energy are analysed. The theoretical results show that the ETU reduces not only the pulse energy but also the effective upper level lifetime of the actively Q-switched Tm, Ho : YLF laser. The practical example of the diode-end-pumped Q-switched Tm, Ho : YLF laser has been used to verify the present model.
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页数：7
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