Field trial over 820km installed SSMF its potential Terabit/s super channel application with up to 57.5-Gbaud DP-QPSK transmissionShow others and affiliations
2015 (English)In: Optics Communications, ISSN 0030-4018, E-ISSN 1873-0310, Vol. 353, p. 133-138Article in journal (Refereed) Published
Abstract [en]
In this paper, we report the result of a field trial of 56-Gbaud (224-Gbit/s) and 57.5-Gbaud (230-Gbit/s) dual-polarization quadrature phase shift keying (DP-QPSK) coherent optical transmission over 820 km installed standard single mode fiber (SSMF). Offline digital signal processing (DSP) was applied for signal recovery and bit-error-rate (BER) counting in our field trial experiments, and BER performance well below the 7% overhead hard-decision forward error correction (FEC) error-free threshold (4.5×10−3) at 231-1 pseudo random bit sequence (PRBS) pattern length has been achieved, with the best achievable BERs of 2×10−4 (56-Gbaud) and 3×10−4 (57.5-Gbaud), respectively. In parallel a 1.15-Tbit/s (5×230-Gbit/s) quasi-Nyquist spaced wavelength division multiplexing (WDM) superchannel transmission over the same 820 km optical field link (FL) was also investigated through numerical simulations based on the same 57.5-Gbaud DP-QPSK signal using 1% roll-off Nyquist pulse shaping with 60-GHz channel spacing, and the results indicate that the BER performance well below the 7% overhead hard-decision FEC error-free threshold (4.5×10−3) for the 1.15-Tbit/s DP-QPSK superchannel transmission can be achieved.
Place, publisher, year, edition, pages
2015. Vol. 353, p. 133-138
Keywords [en]
Coherent optical transmission, Digital signal processing, Field trial, Optical fiber communication, Quadrature phase shift keying
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:ri:diva-31906DOI: 10.1016/j.optcom.2015.05.029Scopus ID: 2-s2.0-84929997146OAI: oai:DiVA.org:ri-31906DiVA, id: diva2:1151764
2017-10-242017-10-242023-05-09Bibliographically approved