| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Continuous-Wave Ho:YAlO3 Laser with Output 8.5W Pumped by a 1.91μm Laser at Room Temperature |
| YAO Bao-Quan, YANG Xiao-Tao, DUAN Xiao-Ming, WANG Tian-Heng, JU You-Lun, WANG Yue-Zhu |
| National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001 |
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| Cite this article: |
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YAO Bao-Quan, YANG Xiao-Tao, DUAN Xiao-Ming et al 2009 Chin. Phys. Lett. 26 044203 |
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Abstract A cw high efficient Ho:YAlO3 laser pumped by 1.91μm diode-pumped Tm:YLF laser at room temperature is realized. The maximum output power reaches 8.5W when the incident pump power is 15.6W. The slope efficiency is 63.7%, and the Tm:YLF to Ho:YAP optical conversion efficiency is 54.5%. The laser wavelength is 2118.3nm when the transmission of output coupler is 30%. The beam quality factor is M2~1.39 measured by the traveling knife-edge method.
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| Keywords:
42.55.Xi
42.60.Pk
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Received: 21 October 2008
Published: 25 March 2009
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