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.

Review of Space-Division Multiplexing Technologies in Optical Communications

“…SM-MCF is much easier to achieve large capacity/longdistance transmission because single-mode propagation is stable and the increase in the core number directly reflects on the total capacity [20,21,22,23,24]. FM-MCF has a considerable potential of providing ultimate capacity and spatial channel counts [25,26,27,28,29,30]; however, the transmission system tends to be complex. In particular, the extension of fiber length and transmission distance is a severe issue.…”

10‐Channel Mode (de)multiplexer with Dual Polarizations

“…Furthermore, these multiplexing approaches have independent degrees of freedom and can be used simultaneously to form a hybrid multiplexing technology, so that the capacity of an optical communication system increases even to Peta-bit/s. [6][7][8] Optical multiplexers and demultiplexers are one of the most important elements in any multiplexed optical interconnects/networks. Silicon photonics has attracted much attention as a very promising platform for the realization of on-chip (de)multiplexers, because of its advantages resulting from the leveraging of CMOS (complementary metal-oxide-semiconductor) processes for large volume and high yield manufacture.…”

“…[1][2][3][4][5][6][7][8] Wavelength-division-multiplexing (WDM) is one of the most successful technologies, and uses different wavelength-channels to carry different signals in a single optical fiber/waveguide simultaneously. [1] In order to…”

Recent progress in SDM amplifiers

“…Significant technical progress has been made with capacities in excess of 2 Pbit/s demonstrated by combining the concepts of multicore and few mode fiber technologies [3]. Whilst technically impressive these have been "hero" lab experiments with only little consideration of practical aspects associated with real world deployment of the technology.…”