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Output characteristics of diode-pumped passively Q-switched Yb: CaYAlO4 pulsed laser based on a SESAM

TANG Rui GAO Zi-ye WU Zheng-mao XIA Guang-qiong

唐睿, 高子叶, 吴正茂, 夏光琼. 基于SESAM被动调Q的激光二极管泵浦Yb:CaYAlO4脉冲激光器[J]. 中国光学(中英文), 2019, 12(1): 167-178. doi: 10.3788/CO.20191201.0167
引用本文: 唐睿, 高子叶, 吴正茂, 夏光琼. 基于SESAM被动调Q的激光二极管泵浦Yb:CaYAlO4脉冲激光器[J]. 中国光学(中英文), 2019, 12(1): 167-178. doi: 10.3788/CO.20191201.0167
TANG Rui, GAO Zi-ye, WU Zheng-mao, XIA Guang-qiong. Output characteristics of diode-pumped passively Q-switched Yb: CaYAlO4 pulsed laser based on a SESAM[J]. Chinese Optics, 2019, 12(1): 167-178. doi: 10.3788/CO.20191201.0167
Citation: TANG Rui, GAO Zi-ye, WU Zheng-mao, XIA Guang-qiong. Output characteristics of diode-pumped passively Q-switched Yb: CaYAlO4 pulsed laser based on a SESAM[J]. Chinese Optics, 2019, 12(1): 167-178. doi: 10.3788/CO.20191201.0167

基于SESAM被动调Q的激光二极管泵浦Yb:CaYAlO4脉冲激光器

基金项目: 

国家自然科学基金项目 61475127

国家自然科学基金项目 61575163

国家自然科学基金项目 61775184

详细信息
    作者简介:

    唐睿(1992-), 女, 黑龙江齐齐哈尔人, 硕士研究生, 主要从事全固态脉冲激光器方面的研究。E-mail:tangrui199207@126.com

    夏光琼(1970—),女,四川富顺人,教授,博士生导师,主要从事激光非线性动力学及相关应用方面的研究。E-mail:gqxia@swu.edu.cn

  • 中图分类号: TN248.1

Output characteristics of diode-pumped passively Q-switched Yb: CaYAlO4 pulsed laser based on a SESAM

doi: 10.3788/CO.20191201.0167
Funds: 

National Natural Science Foundation of China 61475127

National Natural Science Foundation of China 61575163

National Natural Science Foundation of China 61775184

More Information
    Author Bio:

    TANG Rui(1992—), female, from Qiqihar, Heilongjiang, is a master′s student who is mainly engaged in research on all-solid-state pulsed lasers. E-mail:tangrui199207@126.com

    XIA Guangqiong(1970—), female, from Fushun, Sichuan, is a professor and doctoral tutor who is mainly engaged in laser nonlinear dynamics and its related applications. E-mail:gqxia@swu.edu.cn

    Corresponding author: XIA Guang-qiong, E-mail:gqxia@swu.edu.cn
  • 摘要: 采用发射波长约为976 nm的半导体激光器作为泵浦源,Yb3+掺杂浓度为1.5at.%、通光长度为2 mm的Yb:CaYAlO4晶体作为增益介质,本文提出了一种基于半导体可饱和吸收镜(SESAM)被动调Q的激光二极管泵浦Yb:CaYAlO4以获取稳定脉冲输出的方案。通过合理设计谐振腔,实现了稳定的被动调Q激光脉冲输出,并分析了泵浦功率的大小对输出脉冲的重复频率、脉冲宽度、单脉冲能量以及脉冲峰值功率的影响。

     

  • 图 1  Yb:CaYAlO4激光器实验装置图,其中(a)和(b)分别用于实现连续激光输出和被动调Q脉冲激光输出

    Figure 1.  Schematic setup of the Yb:CaYAlO4 laser experiment, where (a) and (b) are diagrams of the continuous-wave setup and passive Q-switched laser setup, respectively

    图 2  连续激光工作下,激光器平均输出功率随泵浦功率变化关系(a)以及泵浦功率为4.86 W时的激光光谱(b)

    Figure 2.  Output power as a function of incident pump power(a) and the optical spectrum under a 4.86 W pump(b) for the laser operating at a continuous-wave

    图 3  调Q脉冲平均输出功率随泵浦功率变化关系

    Figure 3.  Output power as a function of incident pump power for the laser operating at a Q-switched state

    图 4  泵浦功率4.04 W(a), 6.10 W(b)以及7.76 W(c)时,不同时间窗口下的脉冲序列

    Figure 4.  Pulse trains at different time windows for pump powers of 4.04W (a), 6.10W(b), and 7.76W(c)

    图 5  泵浦功率为5.27 W时,不同时间窗口下的调Q脉冲序列(a~c)以及激光光谱(d)

    Figure 5.  Q-switched pulse trains(a-c) and laser spectrums(d) at different time windows when the pump power is 5.27 W

    图 6  重复频率和脉冲宽度随泵浦功率的变化关系

    Figure 6.  Relationship between repetition frequency and pulse width as a function of pump power

    图 7  单脉冲能量和脉冲峰值功率随泵浦功率变化关系

    Figure 7.  Single pulse energy and pulse peak power as a function of pump power

    表  1  Yb3+ doped laser materials classified by molecular structure

    Table  1.   Yb3+ doped laser materials classified by molecular structure

    Molecular structure Laser Material
    Yttrium aluminum garnet Yb:Y3Al5O12[15]
    Sesquioxide Yb:Sc2O3[16]、Yb:Lu2O3[17]
    Aluminate Yb:CaGdAlO4[18]、Yb:CaYAlO4[19]
    Silicate Yb:Gd2SiO5[20]、Yb:Y2SiO5[21]
    Vanadate Yb:YVO4[22]、Yb:LuVO4[23]
    Borate Yb:Sr3Y(BO3)3[24]、Yb:Ca4GdO(BO3)3[25]
    Tungstate Yb:KY(WO4)2[26]、Yb:KG(WO4)2[27]
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  • 收稿日期:  2018-03-14
  • 修回日期:  2018-04-09
  • 刊出日期:  2019-02-01

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