Passively Q-Switched Yb:CALGO Laser Based on Mo:BiVO4 Absorber

Lina Zhao; Ye Yuan; Luyang Tong; Wenyu Zhang; Zhongshuai Zhang; Tingyin Ning; Yangjian Cai; Yuanmei Gao

doi:10.3390/nano11092364

Passively Q-Switched Yb:CALGO Laser Based on Mo:BiVO₄ Absorber

Nanomaterials (Basel). 2021 Sep 11;11(9):2364. doi: 10.3390/nano11092364.

Authors

Lina Zhao^{1

2}, Ye Yuan¹, Luyang Tong¹, Wenyu Zhang¹, Zhongshuai Zhang¹, Tingyin Ning^{1

2}, Yangjian Cai^{1

2

3}, Yuanmei Gao^{1

2}

Affiliations

¹ College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China.
² Shandong Provincial Key Laboratory of Optics and Photonic Device, No 88, East Wenhua Road, Jinan 250014, China.
³ School of Physical Science and Technology, Soochow University, Suzhou 215006, China.

Abstract

A stable, passively Q-switched Yb:CaGdAlO₄ laser based on Mo:BiVO₄ saturable absorber was demonstrated. Close observations of the structure and morphology of the nanoparticles by using transmission electron microscope, Raman spectrum and linear absorption were measured. The nonlinear transmission of Mo:BiVO₄ was characterized by a 30 ps laser with a central wavelength of 1064 nm and a repetition rate of 10 Hz. The experimental maximum output power of the pulsed laser was 510 mW with a repetition rate of 87 kHz and pulse width of 3.18 μs, corresponding to a peak power of 1.84 W and a single pulse energy of 5.8 μJ. The experimental results indicate that Mo:BiVO₄-SA is a great candidate for passively Q-switched lasers in the near infrared region.

Keywords: nanoparticles; pulsed laser; saturable absorber.

Abstract

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