Abstract
In this paper, we present long-haul 32-core dense space division multiplexed (DSDM) unidirectional transmission over a single-mode multicore transmission line. We developed a low-crosstalk heterogeneous 32-core fiber with a square lattice arrangement, and a novel partial recirculating loop system. The span crosstalk of the 51.4-km 32-core transmission line was less than −34.5 dB. This allowed the transmission of polarization division multiplexed 16 quadrature amplitude modulation (PDM-16QAM) signals through all 32-cores over a long distance exceeding a thousand km. We demonstrate 32-core DSDM 20 wavelength division multiplexed (WDM) PDM-16QAM transmission over 1644.8 km with a high aggregate spectral efficiency of 201.46 b/s/Hz. Additionally, we examine the effect of crosstalk on the transmission performance of each core, and show that the Q-penalty has strong correlation with inter-core crosstalk.
Original language | English |
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Journal | Journal of Lightwave Technology |
Volume | 35 |
Issue number | 3 |
Pages (from-to) | 488 - 498 |
ISSN | 0733-8724 |
DOIs | |
Publication status | Published - 2017 |
Bibliographical note
(c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.Keywords
- Coherent communications
- Crosstalk
- Long-haul transmission
- Multicore fiber (MCF)
- Optical Communication Systems
- Optical fiber communication
- Optical fibers
- Space division multiplexing (SDM)
- Spectral efficiency
- Wavelength division multiplexing (WDM)