In-Band Pumped High Power Ho:YAG Ceramic Laser by a Tm:YLF Laser

We demonstrate a high power Ho.YAG ceramic laser resonantly pumped by a Tm.YLF laser at 1908 nm. The lasing characteristics of a 1.0at.% Ho super(3+)-doped YAG ceramic are investigated and compared with different output couplers. By using an output coupler of 50% transmission and 100 mm radius of cu...

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Veröffentlicht in:	Chinese physics letters 2014-12, Vol.31 (12), p.124205-124201
Hauptverfasser:	Yuan, Jin-He, Yao, Bao-Quan, Duan, Xiao-Ming, Shen, Ying-Jie, Cui, Zheng, Yu, Kuai-Kuai, Li, Jiang, Pan, Yu-Bai
Format:	Artikel
Sprache:	eng
Schlagworte:	Ceramics Continuous wave Couplers Lasers Lasing Pumps Slopes YAG
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Beschreibung
Zusammenfassung:	We demonstrate a high power Ho.YAG ceramic laser resonantly pumped by a Tm.YLF laser at 1908 nm. The lasing characteristics of a 1.0at.% Ho super(3+)-doped YAG ceramic are investigated and compared with different output couplers. By using an output coupler of 50% transmission and 100 mm radius of curvature, a 26.8 W continuous wave is obtained at 2091 nm, corresponding to a slope efficiency of 57.9% and an optical to optical efficiency of 55.8% with respect to the absorbed pump power.
ISSN:	0256-307X 1741-3540
DOI:	10.1088/0256-307X/31/12/124205