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Numerical analysis of intermodal delay in few-mode fibers for mode division multiplexing in optical fiber communication systems |
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| Authors: | Munir Abi Xin Xiang-jun Liu Bo Latif Abdul Hussain Aftab and Shahab Ahmad Niazi |
| Institution: | 1. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876, China 2. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, 100876, China 3. Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing University of Posts and Telecommunications, Beijing, 100876, China |
| Abstract: | In order to achieve higher spectral efficiency, mode division multiplexing (MDM) in few-mode fibers is a new research area. The idea faces lots of technical issues including intermodal delay and mode coupling which limit the achievable length of the system. This paper is designated to complete the analysis of intermodal delay in step-index few-mode fibers. We analyze numerically all the parameters of fiber, which could impact intermodal delay in few-mode fibers and identify the conditions which can increase the number of multiplex modes without significant increase in maximum intermodal delay. |
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