›› 2015, Vol. 24 ›› Issue (2): 24207-024207.doi: 10.1088/1674-1056/24/2/024207
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
张海涛a, 陈丹b, 任海翠a, 闫平a, 巩马理a
Zhang Hai-Tao (张海涛)a, Chen Dan (陈丹)b, Ren Hai-Cui (任海翠)a, Yan Ping (闫平)a, Gong Ma-Li (巩马理)a
摘要: A novel evaluation term and a more reasonable criterion, which is described by a new parameter of brightness factor for active large mode area fiber design, are presented. The brightness factor evaluation method is based on the transverse mode competition mechanism in fiber lasers and amplifiers. The brightness factor can be seen as a description of fiber general property since it can represent the output laser brightness of the fiber laser system and because of its ability to resist the nonlinear effect. A core-doped active large pitch fiber with a core diameter of 190 μ and a mode-field diameter of 180 μm is designed by this method, and the designed fiber allows effective single-mode operation.
中图分类号: (Lasers)