| 调Q锁模运转的全固态Tm:LuAG陶瓷激光器 |
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| 引用本文： | 陈晨,许强,孙锐,张亚妮,康翠萍,张明霞,袁振,令维军.调Q锁模运转的全固态Tm:LuAG陶瓷激光器[J].红外与激光工程,2021,50(4):20190563-1-20190563-6. |
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| 作者姓名： | 陈晨 许强 孙锐 张亚妮 康翠萍 张明霞 袁振 令维军 |
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| 作者单位： | 1.宝鸡文理学院 物理与光电技术学院，陕西 宝鸡 721016 |
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| 基金项目： | 国家自然科学基金(11774257，61564008, 11647008，11504416)；陕西省国际科技合作与交流计划项目（2021KW-39）；宝鸡市重大科技专项计划项目（2015CXNL-1-3）；天水市科技支撑计划自然科学基金项目（2018-FZJHK-3392）；天水师范学院研究生创新引导项目（TYCX1901） |
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| 摘 要： | 采用垂直生长法制备的氧化石墨烯（Graphene oxide, GO）作为可饱和吸收体，利用典型“X”型折叠腔在全固态Tm:Lu3Al5O12(Tm:LuAG)陶瓷激光器中实现了调Q锁模运转。以790 nm激光二极管(Laser diode, LD)作为泵浦源，当泵浦功率大于8 W时，激光器进入稳定的调Q锁模状态。当输出镜透过率为5%时，连续光最高输出功率为714 mW，斜效率为4.94%。当泵浦达到16 W时，激光器最大输出功率为200 mW , 光谱中心波长为2024 nm，脉冲宽度约为695 ps，对应的锁模脉冲重复频率为108.7 MHz，调Q包络中锁模脉冲的调制深度接近100%。该2 μm超短脉冲激光器在生物医学和激光通讯等领域具有非常重要的应用。
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| 关 键 词： | Tm:LuAG陶瓷激光器 氧化石墨烯可饱和吸收体 调Q锁模 调制深度 |
| 收稿时间： | 2019-12-10 |
Q-switched mode-locked all-solid-state Tm:LuAG ceramic laser |
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| Affiliation: | 1.Institute of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China2.Institute of Laser Technology, Tianshui Normal University, Tianshui 741001, China3.Baoji Engineering Technology Research Center on Ultrafast Laser and New Materials, Baoji 721016, China4.School of Arts and Sciences, Shaanxi University of Science & Technology, Xi’an 710021, China |
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| Abstract: | Using graphene oxide (GO) by vertical growth method as saturable absorber, an all-solid-state Q-switched mode-locked Tm: Lu3Al5O12 (Tm: LuAG) ceramic laser with typical 'X' folded cavity was firstly demonstrated . A 790 nm laser diode (LD) was used as the pumping source. When the pumping power was greater than 8 W, the laser entered a stable Q-switched mode-locked state. When the output mirror was 5%, the maximum output power of continuous light was 714 mW, and the oblique efficiency was 4.94%. When the pumping power reached 16 W, the maximum output power of the laser was 200 mW, the corresponding repetition frequency of mode-locked pulse was 108.7 MHz, and the modulation depth of mode locked pulse in Q-switched envelope was close to 100%. The 2 μm ultrashort pulsed laser has important applications in biomedicine and laser communication. |
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