Single parity check-coded 16QAM over spatial superchannels in multicore fiber transmission
Journal article, 2015

We experimentally investigate single-parity check (SPC) coded spatial superchannels based on polarization-multiplexed 16-ary quadrature amplitude modulation (PM-16QAM) for multicore fiber transmission systems, using a 7-core fiber. We investigate SPC over 1, 2, 4, 5 or 7 cores in a back-to-back configuration and compare the sensitivity to uncoded PM-16QAM, showing that at symbol rates of 20 Gbaud and at a bit-error-rate (BER) of 10(-3), the SPC superchannels exhibit sensitivity improvements of 2.7 dB, 2.0 dB, 1.7 dB, 1.3 dB, and 1.1 dB, respectively. We perform both single channel and wavelength division multiplexed (WDM) transmission experiments with 22 GHz channel spacing and 20 Gbaud channel symbol rate for SPC over 1, 3 and 7 cores and compare the results to PM-16QAM with the same spacing and symbol rate. We show that in WDM signals, SPC over hl1 core can achieve more than double the transmission distance compared to PM-16QAM at the cost of 0.91 bit/s/Hz/core in spectral efficiency (SE). When sharing the parity-bit over 7 cores, the loss in SE becomes only 0.13 bit/s/Hz/core while the increase in transmission reach over PM-16QAM is 44 %. (C) 2015 Optical Society of America

Author

Tobias Eriksson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

R. S. Luis

Japan National Institute of Information and Communications Technology

Benjamin Puttnam

Japan National Institute of Information and Communications Technology

J. M. D. Mendinueta

Japan National Institute of Information and Communications Technology

Peter Andrekson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Magnus Karlsson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Y. Awaji

Japan National Institute of Information and Communications Technology

N. Wada

Japan National Institute of Information and Communications Technology

Erik Agrell

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

Optics Express

1094-4087 (ISSN)

Vol. 23 11 14569-14582

Subject Categories

Atom and Molecular Physics and Optics

DOI

10.1364/oe.23.014569

PubMed

26072817

More information

Latest update

3/29/2018