Summary
International Symposium on Extremely Advanced Transmission Technologies
2019
Session Number:P
Session:
Number:P-15
Propagation Mode Retention Using Strongly Coupled Multi-Core Fiber
Mahmoud Nasef, Fujimoto Kantaro, Haisong Jiang, Kiichi Hamamoto,
pp.-
Publication Date:2019/5/29
Online ISSN:2188-5079
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Summary:
"Data center traffic is already estimated to become 20 ZB by the year 2021 about twice as much as in 2018 [1]. MDM (mode division multiplexing) can expand transmission capacity within data center [2]; therefore, we propose to introduce an optical network system utilizing MDM into data centers [3]. It has; however, a problem of mode crosstalk in the fiber that prevents proper preservation of individual mode transmission. One main cause of this crosstalk has been mode excitation phenomenon at the bending region of the fiber [4]. In this paper, we study and demonstrate strongly coupled MCF to verify the mode retaining capability. We simulated and estimated the transmittance of input mode by using BPM (beam propagation method) simulation and verified the results by an experiment setup involving 4-cores strongly coupled MCF. As a result, we verified the mode retention characteristics of 5dB at 80mm bending radius, compared to regular multi-mode fiber."