Theoretical analysis and numerical simulation for wavelength switchable Tm:YAG laser modulated by Tm:YAG crystal length

被引：0
|
作者：
Wang C.-L. [1 ]
Xie S.-Y. [1 ]
Du S.-F. [2 ]
Liu H. [1 ]
Xu Y.-L. [1 ]
Zhang J. [1 ]
Xu Z.-Y. [2 ]
机构：
[1] China Building Materials Academy, Beijing
[2] Research Center for Laser Physics and Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing
来源：
Xie, Shi-Yong (shiyong515@163.com) | 1600年 / Chinese Academy of Sciences卷 / 25期
关键词：
Length of laser medium; Pump threshold; Quasi-three-level; Wavelength switchable;
D O I：
10.3788/OPE.20172513.0020
中图分类号：
学科分类号：
摘要：
Based on the analysis of quasi-three-level side pumped Tm:YAG laser system, the dependence of the laser wavelength was studied theoretically and experimentally, which shows central wavelength is switchable between 2.07 and 2.02 μm with different Tm:YAG crystal lengths or rod temperatures. The length of the laser medium corresponding to the wavelength red shift was calculated quantitatively. The laser oscillation at 2.02 μm with larger stimulated emission sections is suppressed when the crystal length is larger than ~85 mm with a 5% output coupling, then an efficient side-diode-pumped rod Tm:YAG laser operating at 2.07 μm is realized. The experimental results show that the wavelength of the single-module Tm:YAG laser with Tm:YAG crystal length of 69 mm is located at 2.02 μm, while the wavelength of two-modules Tm:YAG laser with the total Tm:YAG crystal length of 138 mm is located at 2.07 μm. The experiments confirm the accuracy of the model. © 2017, Science Press. All right reserved.
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页码：20 / 25
页数：5
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