Laser & Optoelectronics Progress, Volume. 62, Issue 1, 0114001(2025)
266 nm Deep Ultraviolet Picosecond Laser Based on Nd∶YVO4 Regenerative Amplifier
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.
Get Citation
Copy Citation Text
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
Category: Lasers and Laser Optics
Received: Feb. 5, 2024
Accepted: Apr. 19, 2024
Published Online: Jan. 3, 2025
The Author Email:
CSTR:32186.14.LOP240660