title: Ultra-dense spatial-division-multiplexed optical fiber transmission over 6-mode 19-core fibers.
abstract: Ultra-dense spatial-division multiplexing (SDM) is achieved by mode multiplexed technique with multiple cores in a single fiber, namely few-mode multi-core fiber. Using a 9.8-km six-mode nineteen-core fiber, we demonstrate an ultra-dense SDM transmission of 16-channels wavelength-division-multiplexed (WDM) dual-polarization quadrature phase shift keying signals, achieving a record spatial multiplicity of 114. With the help of ultra-dense Super-Nyquist WDM techniques in the 4.5-THz bandwidth of the full C-band, we demonstrate 2.05 Pbit/s transmission over 9.8-km six-mode nineteen-core fibers. In this experiment, the highest aggregate spectral efficiency of 456 bit/s/Hz is achieved.
authors.forename: Koji
authors.initials: K
authors.lastname: Igarashi
authors.forename: Daiki
authors.initials: D
authors.lastname: Soma
authors.forename: Yuta
authors.initials: Y
authors.lastname: Wakayama
authors.forename: Koki
authors.initials: K
authors.lastname: Takeshima
authors.forename: Yu
authors.initials: Y
authors.lastname: Kawaguchi
authors.forename: Noboru
authors.initials: N
authors.lastname: Yoshikane
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tsuritani
authors.forename: Itsuro
authors.initials: I
authors.lastname: Morita
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Suzuki