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7012006 
Journal Article 
Practical Simulation Method on Multimode-No-Core-Multimode Fiber Structure Based on the Mode Expansion 
Hong, S; Han, Qun; Zhang, J; Chen, Y; Kim, J; , 
2020 
IEEE Sensors Journal
ISSN: 1530-437X
EISSN: 1558-1748 
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC 
PISCATAWAY 
20 
21 
12758-12764 
In this paper, a simplified simulation method for multimode-no-core-multimode (MNM) fiber structures is developed and demonstrated. The method is based on the mode expansion in the vectorial form, taking account of a complete set of guided modes. The simulated results are in good agreement with the experimental results. Also, it is shown that mode distribution of an input multimode fiber (MMF) is an influence on multimode interference(MMI) in the MNM fiber structure and can be controlled by using a single mode fiber(SMF) segment coupled to it. The proposed method provides an effective way for the designs of multimode-interference(MMI)-based fiber devices, which particularly contain a lot of modes. 
Optical fiber sensors; Manganese; Optical fiber polarization; Multimode interference; multimode-no-core-multimode fiber structure; vectorial approach