Chinese Optics Letters, 2008, 6 (1): 0144, Published Online: Jan. 29, 2008  

Short Tm3+-doped fiber lasers with watt-level output near 2 μm Download: 686次

Author Affiliations
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800
Abstract
High-power operation of diode-pumped fiber lasers at wavelength near 2 μm are demonstrated with short length of heavily Tm3+-doped silica glass fibers. With 7-cm long fiber, a laser at near 2 μm is obtained with the threshold of 135 mW, maximum output power of 1.09 W, and slope efficiency of 9.6% with respect to the launched power from a laser diode at 790 nm. The output stability of this fiber laser is within 5%. The dependence of the performance of fiber lasers on the operation temperature and cavity configuration parameters is also investigated.
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Yulong Tang, Yong Yang, Xiaojin Cheng, Jianqiu Xu. Short Tm3+-doped fiber lasers with watt-level output near 2 μm[J]. Chinese Optics Letters, 2008, 6(1): 0144.

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