Laser & Optoelectronics Progress, Volume. 62, Issue 1, 0114001(2025)

266 nm Deep Ultraviolet Picosecond Laser Based on Nd∶YVO4 Regenerative Amplifier

Kun Guo1,2、*, Ye Han1, Mengyuan Xiong1, Yalong Liu1, Dong Wang1, Bin Xu1,2, Xuanke Zeng3, and Shixiang Xu3
Author Affiliations
  • 1School of Electronic Science and Engineering, Xiamen University, Xiamen 361005, Fujian , China
  • 2Shenzhen Research Institute of Xiamen University, Shenzhen 518057, Guangdong , China
  • 3College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, Guangdong , China
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    Ultrashort pulsed lasers operating in the deep ultraviolet (UV) spectrum, with high energy and peak power, are crucial for a wide range of advanced applications. In this study, we successfully developed a high-power, mode-locked Nd∶YVO4 laser operating at 1064 nm, achieving an average output power of 9.32 W, a pulse repetition rate of 78.12 MHz, and a pulse width of 13.9 ps. The 1064 nm picosecond laser was subsequently used as a seed in a regenerative amplifier, where a stable pulsed laser was obtained at 200 kHz with a maximum average output power of 26.7 W and a pulse width of 16.3 ps. Furthermore, we generated a green laser at 532 nm and a deep UV laser at 266 nm through two stages of nonlinear frequency doubling. The green laser exhibited an average output power of 14.24 W and a pulse width of 12.6 ps, whereas the deep UV laser achieved an output power of 3.94 W and a pulse width of approximately 14.3 ps. The 266 nm laser delivered a single pulse energy of 19.7 μJ and a peak power of 1.37 MW.

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    Kun Guo, Ye Han, Mengyuan Xiong, Yalong Liu, Dong Wang, Bin Xu, Xuanke Zeng, Shixiang Xu. 266 nm Deep Ultraviolet Picosecond Laser Based on Nd∶YVO4 Regenerative Amplifier[J]. Laser & Optoelectronics Progress, 2025, 62(1): 0114001

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Feb. 5, 2024

    Accepted: Apr. 19, 2024

    Published Online: Jan. 3, 2025

    The Author Email:

    DOI:10.3788/LOP240660

    CSTR:32186.14.LOP240660

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