Affiliation:
1. Northeastern University
2. Yanshan University
3. Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology
Abstract
In this paper, we propose a crescent-shaped pore-assisted structure to realize a few-mode multi-core (four-mode six-core) optical fiber with low inter-core cross talk for large-capacity long-distance communication. Using the finite element method, a theoretical analysis is conducted at a working wavelength of 1550 nm, where the proposed optical fiber achieves a total loss of less than 0.2 dB/km and an effective mode field area of greater than
108
µ
m
2
. The inter-core cross talk of the fiber is less than
−
56
d
B
/
100
k
m
, and the relative multiplexing factor reaches up to 28.3, which significantly increases the core density. The maximum dispersion of the four supported linear polarization modes is less than
5.85
p
s
/
(
n
m
×
k
m
)
, which is greatly advantageous in communication systems. In addition, the fabrication scheme of the proposed optical fiber is practical, and its standard-compatible 42 µm core pitch promises the feasibility of integration with commercial optical networks.
Funder
111 Project
Hebei Natural Science Foundation
Natural Science Foundation of Science and Technology Department of Liaoning Province
China Postdoctoral Science Foundation
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
National Key Research and Development Program of China
Subject
Atomic and Molecular Physics, and Optics,Statistical and Nonlinear Physics
Cited by
6 articles.
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