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Acta Optica Sinica, Volume. 42, Issue 9, 0914001(2022)

Experimental Exploration of Er∶YAG Cascaded Pulsed Laser at Room Temperature

Sibo Wang1, Ye Tian1, Bo Qu1, Zhanda Zhu1,2,3,4, Yongling Hui1,2,3,4, Hong Lei1,2,3,4、**, and Qiang Li1,2,3,4、*
Author Affiliations
  • 1Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
  • 2Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
  • 3Beijing Higher Institution Engineering Research Center of Advanced Laser Manufacturing, Beijing 100124, China
  • 4Key Laboratory of Trans-Scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
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    Figures & Tables(6)
    Partial energy level diagram of Er∶YAG

    Fig. 1. Partial energy level diagram of Er∶YAG

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    Experimental setup for room-temperature cascade and non-cascade Er∶YAG laser

    Fig. 2. Experimental setup for room-temperature cascade and non-cascade Er∶YAG laser

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    Emission spectra of cascade Er∶YAG lasers at room temperature. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%

    Fig. 3. Emission spectra of cascade Er∶YAG lasers at room temperature. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%

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    Measured output energy of 2937 nm laser varying with absorbed pump energy. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%

    Fig. 4. Measured output energy of 2937 nm laser varying with absorbed pump energy. (a) Er∶YAG with doping concentration of 7.5%; (b) Er∶YAG with doping concentration of 10%

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    Experimental setup used for measurement of ESA spectrum

    Fig. 5. Experimental setup used for measurement of ESA spectrum

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    Supercontinuum spectra with and without pumping (ESA can be observed from difference of these two sets of spectral signals)

    Fig. 6. Supercontinuum spectra with and without pumping (ESA can be observed from difference of these two sets of spectral signals)

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    Sibo Wang, Ye Tian, Bo Qu, Zhanda Zhu, Yongling Hui, Hong Lei, Qiang Li. Experimental Exploration of Er∶YAG Cascaded Pulsed Laser at Room Temperature[J]. Acta Optica Sinica, 2022, 42(9): 0914001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Nov. 2, 2021

    Accepted: Nov. 22, 2021

    Published Online: May. 6, 2022

    The Author Email: Lei Hong (leihong@bjut.edu.cn), Li Qiang (ncltlq@bjut.edu.cn)

    DOI:10.3788/AOS202242.0914001

    Topics

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