Collection Of theses on high power laser and plasma physics, 2007, 5 (1): 218, Published Online: Sep. 18, 2008  

Influence of the second cladding on the properties of four-layer large flattened mode fibers

Author Affiliations
1 Chinese Academy of Sciences Shanghai Institute of Optics and Fine Mechanics National Laboratory on High Power Laser and Physics Shanghai 201800, China
2 Electronics Technology Group Corporation No. 23 Research Institute Shanghai 200437, China
Abstract
A theoretical method to analyze four-layer large flattened mode (LFM) fibers is presented. The influence of the second cladding on the properties of four-layer LFM fiber, including the fundamental and higher-order modal fields, effective area, bending loss, and dispersion, are studied by comparison. At the same time, the reasons for the different characteristics are considered. The obtained results indicate that the effective area of the four-layer LFM fiber is about 1.6 times larger than that of the conventional standard step-index fiber and the fibers have better bend-induced filtering ability than three-layer LFM fibers.

Chujun Zhao, Yunxia Ye, Zhixiang Tang, Dianyuan Fan, Guanghui Chen, Wei Mu. Influence of the second cladding on the properties of four-layer large flattened mode fibers[J]. Collection Of theses on high power laser and plasma physics, 2007, 5(1): 218.

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