| YU Ru-yuan,ZHENG Hong-jun,LI Xin,BAI Cheng-lin,HU Wei-sheng.A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient[J].Optoelectronics Letters,2018,14(1):30-35 |
| A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient |
| Author Name | Affiliation | | YU Ru-yuan | Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China | | ZHENG Hong-jun | Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China | | LI Xin | Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China | | BAI Cheng-lin | Shandong Provincial Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China | | HU Wei-sheng | State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: |
| A novel three-ring-core few-mode fiber with large effective area and low nonlinear coefficient is proposed in this paper. The fiber characteristics based on the full-vector finite element method (FEM) with perfect matched layer boundary conditions show that four supermodes with large effective area, low nonlinear coefficient and low differential mode group delay (DMGD) are achieved. With the increase of input wavelength, the effective areas of three-ring-core few-mode fiber are increased, and the nonlinear coefficients are decreased. The bending losses are increased with the increase of input wavelength, and are decreased with the increase of bending radius. Moreover, the proposed fiber performs a nonlinear coefficient and DMGD flattened profile at a large wavelength range. |
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