TY - JOUR
T1 - Experimental evaluation of prefiltering for 56 Gbaud DP-QPSK signal transmission in 75 GHz WDM grid
AU - Borkowski, Robert
AU - de Carvalho, Luis Henrique H.
AU - Silva, Edson Porto da
AU - Diniz, Júlio César M.
AU - Zibar, Darko
AU - de Oliveira, Júlio César R.F.
AU - Tafur Monroy, Idelfonso
PY - 2014
Y1 - 2014
N2 - We investigate optical prefiltering for 56Gbaud (224Gbit/s) electrical time-division multiplexed (ETDM) dual polarization (DP) quaternary phase shift keying (QPSK) transmission. Different transmitter-side optical filter shapes are tested and their bandwidths are varied. Comparison of studied filter shapes shows an advantage of a pre-emphasis filter. Subsequently, we perform a fiber transmission of the 56Gbaud DP QPSK signal filtered with the 65GHz pre-emphasis filter to fit the 75GHz transmission grid. Bit error rate (BER) of the signal remains below forward error correction (FEC) limit after 300km of fiber propagation.
AB - We investigate optical prefiltering for 56Gbaud (224Gbit/s) electrical time-division multiplexed (ETDM) dual polarization (DP) quaternary phase shift keying (QPSK) transmission. Different transmitter-side optical filter shapes are tested and their bandwidths are varied. Comparison of studied filter shapes shows an advantage of a pre-emphasis filter. Subsequently, we perform a fiber transmission of the 56Gbaud DP QPSK signal filtered with the 65GHz pre-emphasis filter to fit the 75GHz transmission grid. Bit error rate (BER) of the signal remains below forward error correction (FEC) limit after 300km of fiber propagation.
KW - Optical prefiltering
KW - Optical modulation
KW - Quaternary phase shift keying
KW - Coherent detection
KW - Optical transmission
KW - Wavelength division multiplexing
U2 - 10.1016/j.yofte.2013.11.006
DO - 10.1016/j.yofte.2013.11.006
M3 - Journal article
SN - 1068-5200
VL - 20
SP - 39
EP - 43
JO - Optical Fiber Technology
JF - Optical Fiber Technology
IS - 1
ER -