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Chinese Optics Letters, Volume. 20, Issue 1, 011403(2022)

High-power and high-efficiency 4.3 µm ZGP-OPO

Feifei Wang1, Jiatong Li1, Xiaohui Sun1, Bingzheng Yan1, Hongkun Nie1、**, Xun Li4, Kejian Yang1,2, Baitao Zhang1,2、*, and Jingliang He1,2,3
Author Affiliations
  • 1State Key Laboratory of Crystal Materials, Institute of Novel Semiconductors, Shandong University, Jinan 250100, China
  • 2Key Laboratory of Laser & Infrared System, Ministry of Education, Shandong University, Qingdao 266237, China
  • 3Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250358, China
  • 4State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics of CAS, Xi’an 710119, China
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    Experimental schematic.

    Fig. 1. Experimental schematic.

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    Output characteristics of 2.1 µm AO Q-switched Ho:YAG laser. (a) Average output power and pulse width vary with pump power in the CW and Q-switched regimes; (b) laser output spectrum in the CW and Q-switched regimes; (c) the pulse profile under the maximum average output power (the insert is the corresponding pulse train with a repetition rate of 15 kHz); (d) the beam quality factor under the maximum average output power (the inserts are 2D and 3D profiles).

    Fig. 2. Output characteristics of 2.1 µm AO Q-switched Ho:YAG laser. (a) Average output power and pulse width vary with pump power in the CW and Q-switched regimes; (b) laser output spectrum in the CW and Q-switched regimes; (c) the pulse profile under the maximum average output power (the insert is the corresponding pulse train with a repetition rate of 15 kHz); (d) the beam quality factor under the maximum average output power (the inserts are 2D and 3D profiles).

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    Output characteristics of ZGP-OPO. (a) Average output power and pulse width vary with pump power; (b) OPO output spectrum; (c) pulse profiles of depleted pump laser and generated OPO laser pulses; (d) beam quality factor of 4.3 µm at the maximum output power; (e) total ZGP-OPO output power stability.

    Fig. 3. Output characteristics of ZGP-OPO. (a) Average output power and pulse width vary with pump power; (b) OPO output spectrum; (c) pulse profiles of depleted pump laser and generated OPO laser pulses; (d) beam quality factor of 4.3 µm at the maximum output power; (e) total ZGP-OPO output power stability.

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    Feifei Wang, Jiatong Li, Xiaohui Sun, Bingzheng Yan, Hongkun Nie, Xun Li, Kejian Yang, Baitao Zhang, Jingliang He, "High-power and high-efficiency 4.3 µm ZGP-OPO," Chin. Opt. Lett. 20, 011403 (2022)

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    Paper Information

    Category: Lasers, Optical Amplifiers, and Laser Optics

    Received: Jun. 1, 2021

    Accepted: Jul. 16, 2021

    Published Online: Sep. 21, 2021

    The Author Email: Hongkun Nie (hknie@sdu.edu.cn), Baitao Zhang (btzhang@sdu.edu.cn)

    DOI:10.3788/COL202220.011403

    Topics

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