Open AccessWDM transmission of 1084-Gbaud PDM-QPSK signals (40 × 4336-Gb/s) over 2800-km SMF-28 with EDFA-only
Author(s) -
Jianjun Yu,
Ze Dong,
HungChang Chien,
Zhensheng Jia,
Xinying Li,
Nan Chi
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.00b217
Subject(s) - wavelength division multiplexing , phase shift keying , optics , optical amplifier , physics , channel spacing , bit error rate , multiplexing , polarization division multiplexing , spectral efficiency , wavelength , telecommunications , channel (broadcasting) , computer science , laser
We experimentally demonstrated the transmission of 40 × 433.6-Gb/s Nyquist wavelength-division-multiplexing (N-WDM) optical time-division-multiplexing (OTDM) over 2800-km single-mode fiber (SMF)-28 with Erbium-doped fiber amplifier (EDFA)-only amplification, adopting polarization-division-multiplexing carrier-suppressed return-to-zero quadrature-phase-shift-keying (PDM-CSRZ-QPSK) modulation as well as post filter and 1-bit maximum likelihood sequence estimation (MLSE). Each channel occupies 100 GHz, yielding a spectral efficiency of 4.05 b/s/Hz. The bit-error ratio (BER) of all channels is less than the pre-forward-error-correction (pre-FEC) limit of 3.8 × 10(-3) after 2800-km SMF-28 transmission.