Collection Of theses on high power laser and plasma physics, 2006, 4 (1): 140, Published Online: Jun. 4, 2007
Modal fields and bending loss analyses of three-layer large flattened mode fibers
Abstract
Theoretical method to analyze three-layer large flattened mode (LFM) fibers is presented. The modal fields, including the fundamental and higher order modes, and bending loss of the fiber are analyzed. The reason forming the different modal fields is explained and the feasibility to filter out the higher order modes via bending to realize high power, high beam quality fiber laser is given. Comparisons are made with the standard step-index fiber.
Chujun Zhao, Runwu Peng, Zhixiang Tang, Yunxia Ye, Lei Shen, Dianyuan Fan. Modal fields and bending loss analyses of three-layer large flattened mode fibers[J]. Collection Of theses on high power laser and plasma physics, 2006, 4(1): 140.