Passively Q-Switched Yb:CALGO Laser Based on Mo:BiVO<sub>4</sub> Absorber
Lina Zhao,
Ye Yuan,
Luyang Tong,
Wenyu Zhang,
Zhongshuai Zhang,
Tingyin Ning,
Yangjian Cai,
Yuanmei Gao
Affiliations
Lina Zhao
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Ye Yuan
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Luyang Tong
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Wenyu Zhang
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Zhongshuai Zhang
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Tingyin Ning
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Yangjian Cai
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
Yuanmei Gao
College of Physics and Electronics, Center of Light Manipulations and Applications, Shandong Normal University, No 88, East Wenhua Road, Jinan 250014, China
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.
