4.55 W continue-wave dual-end pumping of Er:Yb:YAl3(BO3)4 microchip laser at 1.5 μm

4.55 W continue-wave dual-end pumping of Er:Yb:YAl3(BO3)4 microchip laser at 1.5 μm

This paper demonstrates an eye-safe 1.5 μm continue wave (CW) Er:Yb:YAl3(BO3)4 (Er:Yb:YAB) microchip laser with dual-end pumping. By using a 1.5 mm thick Er:Yb:YAB crystal and 2.5% output coupling transmittance, its maximum output power could reach 4.55 W at the incident power of 15.4 W. This is the...

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Veröffentlicht in:Applied physics letters 2023-10, Vol.123 (17)
Hauptverfasser: Cheng, Wenwen, Zhang, Tianshan, Jiang, Zeqian, Huang, Gang, Huang, Yongcheng, Li, Bingxuan, Lin, Zhanglang, Chen, Yujin, Huang, Yidong, Lin, Yanfu, Liao, Wenbin, Zhang, Ge
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Erbium
Laser beams
Laser outputs
Laser pumping
Pumping
Ytterbium
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Zusammenfassung:This paper demonstrates an eye-safe 1.5 μm continue wave (CW) Er:Yb:YAl3(BO3)4 (Er:Yb:YAB) microchip laser with dual-end pumping. By using a 1.5 mm thick Er:Yb:YAB crystal and 2.5% output coupling transmittance, its maximum output power could reach 4.55 W at the incident power of 15.4 W. This is the largest CW laser output power in the reported Er:Yb:YAB laser. The output laser beam was observed. The beam quality factors M2 in the X and Y directions were 1.65 and 1.71, respectively. The beam quality of the output laser of the CW Er:Yb:YAB microchip laser pumped by dual-end is significantly improved compared to previous works.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0167529