Chin. Phys. Lett.  2008, Vol. 25 Issue (5): 1693-1696    DOI:
Original Articles |
High Efficient Continuous-Wave Ho:YAG Laser Pumped by a Diode-pumped Tm:YLF Laser at Room Temperature
DUAN Xiao-Ming;YAO Bao-Quan;ZHANG Yun-Jun;SONG Cheng-Wei;GAO Jing;JU You-Lun;WANG Yue-Zhu
National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001
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DUAN Xiao-Ming, YAO Bao-Quan, ZHANG Yun-Jun et al  2008 Chin. Phys. Lett. 25 1693-1696
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Abstract We present a high efficient continuous wave Ho:YAG laser pumped by a diode-pumped Tm:YLF laser with a Fabry--Perot etalon tuning at 1.91μm. The maximum output power reaches 7.2W when the absorbed pump power is 10.8W. The slope efficiency (relative to the absorbed power) is 74.1%, and the Tm:YLF to Ho:YAG optical conversion efficiency of 60%, then the diode-to-Holmium optical conversion efficiency achieved is 21.0%. The wavelength is 2090nm when the transmission of output coupler is larger than 20%. The beam quality factor is M2~1.15 measured by the travelling knife-edge method.
Keywords: 42.55.Xi      42.60.Pk     
Received: 18 February 2008      Published: 29 April 2008
PACS:  42.55.Xi (Diode-pumped lasers)  
  42.60.Pk (Continuous operation)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I5/01693
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DUAN Xiao-Ming
YAO Bao-Quan
ZHANG Yun-Jun
SONG Cheng-Wei
GAO Jing
JU You-Lun
WANG Yue-Zhu
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