• Chinese Optics Letters
  • Vol. 19, Issue 9, 091403 (2021)
Lina Zhao1、2、*, Fangxin Cai1, Luyang Tong1, Ye Yuan1, Wenyu Zhang1, and Yangjian Cai1、2、**
Author Affiliations
  • 1College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250014, China
  • 2Shandong Provincial Key Laboratory of Optics and Photonic Device, Jinan 250014, China
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    Abstract

    In this paper, we report a passively mode-locked Nd:Y3Sc2Al3O12 (Nd:YSAG) laser using a periodically poled LiNbO3 (PPLN) superlattice. Nonlinear mirror mode locking based on PPLN intracavity frequency doubling was theoretically analyzed. The modulation depth of nonlinear reflectivity of the nonlinear mirror is approximately 8.8%. Optical performances of the mode-locked laser including output power, radio frequency spectrum, and optical spectrum were experimentally investigated. An average output power of 710 mW with a slope efficiency of 14.6% was obtained at the pump power of 6.5 W. The repetition rate is 101.7 MHz, and the signal-to-noise ratio of the mode-locked pulse is 45 dB. The mode-locked pulse width was approximately 9 ps.
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    Lina Zhao, Fangxin Cai, Luyang Tong, Ye Yuan, Wenyu Zhang, Yangjian Cai. Theoretical analysis of periodically poled LiNbO3 nonlinear mirror and its application in a passively mode-locked Nd:YSAG laser[J]. Chinese Optics Letters, 2021, 19(9): 091403
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    Category: Lasers, Optical Amplifiers, and Laser Optics
    Received: Nov. 23, 2020
    Accepted: Mar. 4, 2021
    Posted: Mar. 4, 2021
    Published Online: Jun. 15, 2021
    The Author Email: Lina Zhao (lnzhao@sdnu.edu.cn), Yangjian Cai (yangjiancai@suda.edu.cn)