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Proceedings Paper

Research on output characteristics of continuous-wave operation of Ho:YAG laser pumped by Tm:YLF laser
Author(s): Xinyu Chen; Jiaqi Bie; Zhulong Huang; Xuedi Song; Guangyong Jin
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Paper Abstract

It report a continuous wave Ho:YAG laser pumped by1.91 μm Tm Laser. It important to thesis analyzed the output characteristics of Ho laser pumped by continuous Tm laser.The rate equation of Ho laser in continuous-wave operation was put forward. The rate equation was solved to analyze the influence of upconversion effect to the output power, slope efficiency and threshold power in CW operation .The transition branching ratio between the energy levels was taken into consideration while discussing the influence of up conversion.Through the simulation analysis on the output characteristics, consider the influence of upconversion effect than to ignore the influence of upconversion effect, The threshold power increased by 0.34W, the highest output power of the reduced 2.89W, the slope efficiency was decreased by 16.1%.Respectively,For all the experiments, the Tm:YLF laser crystal keeps 292K and the temperature control method is water cooling. When we applied L shape plano concave resonator, the length of the resonator is100mm, the radius of curvature output mirror is 150mm and the temperature of theHo:YAG laser crystal is 292K, we observed the central laser wavelength is 2.09μm. The highest output power reaches 8.23W when the totally input pump power is18W. And the slope efficiency is 45.7%, respectively. The experimental results are coincide with the theory.

Paper Details

Date Published: 17 September 2013
PDF: 10 pages
Proc. SPIE 8904, International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications, 890419 (17 September 2013); doi: 10.1117/12.2034596
Show Author Affiliations
Xinyu Chen, Changchun Univ. of Science and Technology (China)
Jiaqi Bie, Changchun Univ. of Science and Technology (China)
Zhulong Huang, Changchun Univ. of Science and Technology (China)
Xuedi Song, Changchun Univ. of Science and Technology (China)
Guangyong Jin, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8904:
International Symposium on Photoelectronic Detection and Imaging 2013: High Power Lasers and Applications
Andreas Tünnermann; Zejin Liu; Pu Wang; Chun Tang, Editor(s)

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