Tm3+-doped fiber lasers pumped by double lens coupling 793nm LD

ZHANG Mao; REN Gang; LIU Wenbing; XIA Huijun; LIU Quanxi; ZHONG Ming

doi:10.7510/jgjs.issn.1001-3806.2014.03.013

LASER TECHNOLOGY > 2014 > 38(3): 347-351. > DOI: 10.7510/jgjs.issn.1001-3806.2014.03.013

ZHANG Mao, REN Gang, LIU Wenbing, XIA Huijun, LIU Quanxi, ZHONG Ming. Tm3+-doped fiber lasers pumped by double lens coupling 793nm LD[J]. LASER TECHNOLOGY, 2014, 38(3): 347-351. DOI: 10.7510/jgjs.issn.1001-3806.2014.03.013

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Tm3+-doped fiber lasers pumped by double lens coupling 793nm LD

Southwest Institute of Technical Physics, Chengdu 610041, China

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Received Date: July 14, 2013
Revised Date: August 13, 2013
Published Date: May 24, 2014

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Abstract

Abstract

To achieve 2μm laser output, 793nm LD face-pumping Tm3+-doped fiber laser was adopted. Double lens coupling system was designed. Cross relaxation of Tm3+-doped fiber laser and thermal effect were analyzed, and then the related experiments were carried out. The results show that coupling efficiency of coupling system is 84%. When the pump power is 70W, the output power is 34W with slop efficiency of 59%, central wavelength of 2001.2nm and M2 of less than 1.2. The results are helpful to design Tm3+-doped fiber lasers.
- lasers,
- Tm3+-doped fiber laser,
- laser diode,
- double lens coupling system,
- thermal effect

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