Thermal effect and power limit in high power double-clad fiber laser

Xue Dong; Zhou Jun; Lou Qihong; Shuai Mindong

Volume 21 Issue 07

Jul. 2009

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2009 > 21(07): 0-

shen yong-ming, zhang yao-fei, hou tian-jin, et al. Comparisons of temperature field and stress field between heat-capacity laser and solid steady state laser[J]. High Power Laser and Particle Beams, 2006, 18.

Citation:

Xue Dong, Zhou Jun, Lou Qihong, et al. Thermal effect and power limit in high power double-clad fiber laser[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

Xue Dong, Zhou Jun, Lou Qihong, et al. Thermal effect and power limit in high power double-clad fiber laser[J]. High Power Laser and Particle Beams, 2009, 21.

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Thermal effect and power limit in high power double-clad fiber laser

1.
Physics and Electronic Engineering Department,Zaozhuang University,Zaozhuang 277100,China;
2.
Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,P.O.Box 800-211,Shanghai 201800,China

Publish Date: 2009-07-15

Abstract

Abstract

According to the steady-state heat conduction equation, the temperature distribution in the high power double-clad fiber laser(DCFL) has been analyzed. The influence of fiber size, cooling-boundary condition and pump power on temperature distribution are discussed based on the analytic solution. The theoretical maximum output power with given parameters is obtained. The maximum power of a commonly used DCFL is limited by the melting point of the material and the non-linear effect. The bottlenecks can be easily determined so as to come up with effective improved shemes, such as weakening or eliminating the linear effect, raising the heat-resistant of outer-clad and improving the cooling method.
- double-clad fiber laser,
- temperature field,
- thermal effect,
- power limit

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