Open AccessDesign and transmission analysis of trench-assisted multi-core fibre in standard cladding diameter
Author(s) -
Xun Mu,
Alessandro Ottino,
Filipe Ferreira,
Georgios Zervas
Publication year - 2022
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.472430
Subject(s) - cladding (metalworking) , trench , optics , materials science , crosstalk , optical fiber , bandwidth (computing) , optical fiber cable , terabit , wavelength , coating , antenna aperture , optical communication , wavelength division multiplexing , computer science , optoelectronics , telecommunications , physics , nanotechnology , composite material , radiation pattern , layer (electronics) , antenna (radio)
6-core and 8-core trench-assisted heterogeneous fibres in standard cladding diameter are designed using artificial intelligence-based techniques including a cut-off wavelength regressor. The designs proposed here, for the first time, suppress crosstalk at 1550 nm of 8-core fibre to as low as -55 dB/km covering the whole S+C+L band while keeping coating loss below 0.001 dB/km. We compare them to reveal the influence of the additional cores in the 125 µm cladding diameter scenario. We report on the transmission characteristics and performance of the MCFs in terms of capacity and spatial spectral efficiency, including the influence of bandwidth, effective mode area, distance and crosstalk, for a range of transmission distances. The artificial intelligence-based method and insights given can be used to significantly speed up and tailor designs for a variety of telecom and datacom applications.