Laser & Optoelectronics Progress, Volume. 54, Issue 8, 81408(2017)
L-Shaped Single-Longitudinal-Mode Tm, Ho∶YAG Lasers Based on Twisted Mode Cavity
A single-longitudinal-mode Tm, Ho∶YAG laser is realized by using a diode-pumped L-shaped twisted mode cavity. There mainly exist two oscillator wavebands at around 2090 nm in the output spectrum of Tm, Ho∶YAG laser under free running. The maximum output power is 483 mW under pump power of 6.12 W. The single-longitudinal-mode laser possesses a maximum output power of 202 mW at 2090.9 nm under the pump power of 5.9 W, and the corresponding slope efficiency is 6.95%. When the pump power increases to over 5.9 W, the Tm, Ho∶YAG laser runs with multi modes. The output beam radii of single-longitudinal-mode Tm, Ho∶YAG laser are measured with knife-edge method at several positions after the beams pass through a lens. The beam quality factor is about 1.17.
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Li Li, Ju Youlun, Dai Tongyu, Chen Fang. L-Shaped Single-Longitudinal-Mode Tm, Ho∶YAG Lasers Based on Twisted Mode Cavity[J]. Laser & Optoelectronics Progress, 2017, 54(8): 81408
Category: Lasers and Laser Optics
Received: Apr. 5, 2017
Accepted: --
Published Online: Aug. 2, 2017
The Author Email: Li Li (eoei@vip.sina.com)