Title :
305 Tb/s Space Division Multiplexed Transmission Using Homogeneous 19-Core Fiber
Author :
Sakaguchi, Jun ; Puttnam, B.J. ; Klaus, Werner ; Awaji, Y. ; Wada, N. ; Kanno, Atsushi ; Kawanishi, Tetsuyas ; Imamura, Kousuke ; Inaba, Hiromi ; Mukasa, K. ; Sugizaki, Ryuichi ; Kobayashi, Takehiko ; Watanabe, Manabu
Author_Institution :
Photonic Network Res. Inst., Nat. Inst. of Inf. & Commun. Technol., Tokyo, Japan
Abstract :
We report record capacity data transmission at 305 Tb/s over 10.1 km, using space division multiplexing (SDM) with 19 channels. To realize such a large SDM channel number, we fabricated a trench-assisted homogeneous 19-core fiber with average intercore crosstalk of about -32 dB at 1550 nm. We also fabricated a 19-channel SDM multiplexer/demultiplexer using free-space optics with low insertion losses and low additional crosstalk. The data signal transmitted through each SDM channel was 100 wavelength division multiplexing (100 GHz spacing) 2 × 86 Gb/s polarization-division-multiplexed quadrature phase shift keying signals and the spectral efficiency was 30.5 b/s/Hz.
Keywords :
multiplexing equipment; optical communication equipment; optical crosstalk; optical fibre fabrication; quadrature phase shift keying; space division multiplexing; wavelength division multiplexing; SDM channel number; bit rate 305 Tbit/s; free-space optics; insertion losses; intercore crosstalk; multiplexer-demultiplexer; polarization division multiplexed quadrature phase shift keying signals; size 10.1 km; space division multiplexed transmission; spectral efficiency; trench-assisted homogeneous 19-core fiber; wavelength 1550 nm; wavelength division multiplexing; Couplings; Crosstalk; Optical crosstalk; Optical fiber polarization; Wavelength division multiplexing; Coherent communications; fiber optics; multicore fiber (MCF); quadrature phase shift keying (QPSK); space division multiplexing (SDM); wavelength division multiplexing (WDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2217373
