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Design and optimization of weakly-coupled few-mode fiber with low nonlinearity

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Abstract

By investigating the influence of the difference of refractive index between core and cladding (nco-ncl), normalized frequency (V ) and core radius (α) on both the intramodal and intermodal nonlinear coefficients (NCs) respectively, we design a novel weakly-coupled four-mode fiber with low nonlinearity. In general, under the premise of ensuring the low NCs between two non-degenerate modes, this design can reduce the intermodal NCs (< 0.5 W-1 \cdot km-1) between two degenerate modes and optimizes the parameters of differential group delays (DGDs) and chromatic dispersion. The optimized few mode fiber (FMF) is eligible for transmission and mode de-multiplexing in the receiver.

Newport宣传-MKS新实验室计划
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DOI:10.3788/col201412.030601

所属栏目:Fiber optics and optical communications

责任编辑:刘盛龄

收稿日期:2013-09-23

录用日期:2014-01-15

网络出版日期:2014-02-28

联系人作者:联系作者(liujunyan525@gmail.com)

备注:This work was supported by the National "973" Program of China (Nos. 2010CB328204 and 2014CB340102), the National"863"Programof China (No. 2012AA011301), the National Natural Science Foundation of China (Nos. 61302085, 61271191, and 61271189), and the China Post-Doctoral Foundation Project (No. 2012M520207).

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