High-repetition-rate 1.5 µm passively Q-switched Er:Yb:YAl3(BO3)4 microchip laser

Songqing Zha; Yujin Chen; Bingxuan Li; Yanfu Lin; Wenbin Liao; Yuqi Zou; Chenghui Huang; Zhanglang Lin; Ge Zhang

doi:doi:10.3788/COL202119.071402

Chinese Optics Letters, 2021, 19 (7): 071402, Published Online: Apr. 2, 2021

High-repetition-rate 1.5 µm passively Q-switched Er:Yb:YAl₃(BO₃)₄ microchip laser Download： 933次

Songqing Zha ^1,2Yujin Chen ^1,*Bingxuan Li ^1,3Yanfu Lin ¹Wenbin Liao ¹Yuqi Zou ⁴Chenghui Huang ¹Zhanglang Lin ¹Ge Zhang ^1,3,5,**

Author Affiliations

¹ Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

² Fuzhou University, Fuzhou 350002, China

³ Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China

⁴ Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

⁵ Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Device, Fuzhou 350108, China

1.5?μm microchip laser passive Q-switching Er:Yb:YAl34 crystal high-repetition-rate laser pulse

Abstract

End-pumped by a 976 nm diode laser, a high-repetition-rate

Er : Yb : {YAl}_{3} {({BO}_{3})}_{4}

microchip laser passively Q-switched by a

{Co}^{2 +} : {MgAl}_{2} O_{4}

crystal is reported. At a quasi-continuous-wave pump power of 20 W, a 1553 nm passively Q-switched laser with the repetition rate of 544 kHz, pulse duration of 8.3 ns, and pulse energy of 3.9 μJ was obtained. To the best of our knowledge, the 544 kHz is the highest reported value for the 1.5 μm passively Q-switched pulse laser. In the continuous-wave pumping experiment, the maximum repetition rate of 144 kHz with the pulse duration of 8.0 ns and pulse energy of 1.7 μJ was obtained at the incident pump power of 6.3 W.

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Songqing Zha, Yujin Chen, Bingxuan Li, Yanfu Lin, Wenbin Liao, Yuqi Zou, Chenghui Huang, Zhanglang Lin, Ge Zhang. High-repetition-rate 1.5 µm passively Q-switched Er:Yb:YAl₃(BO₃)₄ microchip laser[J]. Chinese Optics Letters, 2021, 19(7): 071402.

High-repetition-rate 1.5 µm passively Q-switched Er:Yb:YAl₃(BO₃)₄ microchip laser Download： 933次

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