title: 112-Tb/s space-division multiplexed DWDM transmission with 14-b/s/Hz aggregate spectral efficiency over a 76.8-km seven-core fiber.
abstract: We describe a new multicore fiber (MCF) having seven single-mode cores arranged in a hexagonal array, exhibiting low crosstalk among the cores and low loss across the C and L bands. We experimentally demonstrate a record transmission capacity of 112 Tb/s over a 76.8-km MCF using space-division multiplexing and dense wavelength-division multiplexing (DWDM). Each core carries 160 107-Gb/s polarization-division multiplexed quadrature phase-shift keying (PDM-QPSK) channels on a 50-GHz grid in the C and L bands, resulting in an aggregate spectral efficiency of 14 b/s/Hz. We further investigate the impact of the inter-core crosstalk on a 107-Gb/s PDM-QPSK signal after transmitting through the center core of the MCF when all the 6 outer cores carry same-wavelength 107-Gb/s signals with equal powers, and discuss the system implications of core-to-core crosstalk on ultra-long-haul transmission.
authors.affiliation: OFS Labs, 19 Schoolhouse Rd, Somerset NJ, 08873, USA. bzhu@ofsoptics.com
authors.forename: B
authors.initials: B
authors.lastname: Zhu
authors.forename: T F
authors.initials: TF
authors.lastname: Taunay
authors.forename: M
authors.initials: M
authors.lastname: Fishteyn
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Chandrasekhar
authors.forename: M F
authors.initials: MF
authors.lastname: Yan
authors.forename: J M
authors.initials: JM
authors.lastname: Fini
authors.forename: E M
authors.initials: EM
authors.lastname: Monberg
authors.forename: F V
authors.initials: FV
authors.lastname: Dimarcello