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Laser & Optoelectronics Progress, Volume. 58, Issue 17, 1736001(2021)

[in Chinese]

Wentao Zhu1, Huijun He1,2, Jun Yu1, Qingdian Lin1, Xiaoyang Guo1、*, Cangtao Zhou1、**, and Shuangchen Ruan1、***
Author Affiliations
  • 1Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, College of Engineering Physics, Shenzhen Technology University, Shenzhen , Guangdong 518118, China
  • 2College of Physics and Optoelectronic Engineer, Shenzhen University, Shenzhen , Guangdong 518060, China
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    Conceptual design of Yb∶YAG rod amplifier and nonlinear-compression-based TW laser system

    Fig. 1. Conceptual design of Yb∶YAG rod amplifier and nonlinear-compression-based TW laser system

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    Experimental setup

    Fig. 2. Experimental setup

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    Output energy as a function of absorbed pump energy for free running (inset: near-field beam profile with 225 mJ absorbed pump energy and 1.5 ms pump pulse width)

    Fig. 3. Output energy as a function of absorbed pump energy for free running (inset: near-field beam profile with 225 mJ absorbed pump energy and 1.5 ms pump pulse width)

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    Results. (a) Round-trip time and output energy with 1.5 ms pump pulse width at 10 Hz; (b) intracavity pulse-amplification evolution

    Fig. 4. Results. (a) Round-trip time and output energy with 1.5 ms pump pulse width at 10 Hz; (b) intracavity pulse-amplification evolution

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    Pulse waveform. (a) Temporal pulse shape of regenerated output; (b) input seed spectrum, Q-switched spectrum, and amplified-pulse spectrum

    Fig. 5. Pulse waveform. (a) Temporal pulse shape of regenerated output; (b) input seed spectrum, Q-switched spectrum, and amplified-pulse spectrum

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    Results. (a) M2 factor of output laser beam (inset: far-field beam profile); (b) 2 h output-energy stability test result

    Fig. 6. Results. (a) M2 factor of output laser beam (inset: far-field beam profile); (b) 2 h output-energy stability test result

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    Wentao Zhu, Huijun He, Jun Yu, Qingdian Lin, Xiaoyang Guo, Cangtao Zhou, Shuangchen Ruan. [J]. Laser & Optoelectronics Progress, 2021, 58(17): 1736001

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    Paper Information

    Received: Jun. 26, 2021

    Accepted: Jul. 7, 2021

    Published Online: Sep. 15, 2021

    The Author Email: Guo Xiaoyang (guoxiaoyang@sztu.edu.cn), Zhou Cangtao (zhoucangtao@sztu.edu.cn), Ruan Shuangchen (ruanshuangchen@sztu.edu.cn)

    DOI:10.3788/LOP202158.1736001

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology