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Diode-end-pumped CW Tm,Ho:YLF solid-state laser working at room temperature

Wang Yue-Zhu Shi Hong-Feng Zhang Xin-Lu

Diode-end-pumped CW Tm,Ho:YLF solid-state laser working at room temperature

Wang Yue-Zhu, Shi Hong-Feng, Zhang Xin-Lu
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  • Received Date:  07 August 2005
  • Accepted Date:  28 November 2005
  • Published Online:  20 April 2006

Diode-end-pumped CW Tm,Ho:YLF solid-state laser working at room temperature

  • 1. (1)哈尔滨工业大学光电技术研究所,可调谐激光国家重点实验室,哈尔滨 150001; (2)哈尔滨工业大学光电技术研究所,可调谐激光国家重点实验室,哈尔滨 150001;哈尔滨工程大学理学院,哈尔滨 150001

Abstract: The laser properties of laser diode end-pumped Tm and Ho co-doped lithium yttrium fluoride (YLF) laser are studied. The experiment of Tm,Ho:YLF laser is conducted for different output couplings, and the optimum output coupler transmission is 2% when the crystal is kept at room temperature. The distribution of far field intensity is measured by pin-hole scanning, the output laser is proved to be operating in the TEM00 mode, and the relation between thermal focal length and pump power is obtained. To achieve single frequency operation, two solid, uncoated fused silica etalons are used. The laser threshold pump power is 250 mW, and the maximum continuous wave single frequency output power is 118 mW at the pump power of 2.8 W. The single frequency laser may be used as a seed laser for either a larger oscillator or an amplifier.

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