TY - JOUR
T1 - Spatial superchannel routing in a two-span ROADM system for space division multiplexing
AU - Nelson, L. E.
AU - Feuer, M. D.
AU - Abedin, K.
AU - Zhou, X.
AU - Taunay, T. F.
AU - Fini, J. M.
AU - Zhu, B.
AU - Isaac, R.
AU - Harel, R.
AU - Cohen, G.
AU - Marom, D. M.
PY - 2014/2/15
Y1 - 2014/2/15
N2 - We report a two-span, 67-km space-division-multiplexed (SDM) wavelength-division-multiplexed (WDM) system incorporating the first reconfigurable optical add-drop multiplexer (ROADM) supporting spatial superchannels and the first cladding-pumped multicore erbium-doped fiber amplifier directly spliced to multicore transmission fiber. The ROADM subsystem utilizes two conventional 1 × 20 wavelength selective switches (WSS) each configured to implement a 7 × (1 × 2) WSS. ROADM performance tests indicate that the subchannel insertion losses, attenuation accuracies, and passband widths are well matched to each other and show no significant penalty, compared to the conventional operating mode for the WSS. For 6 × 40 × 128-Gb/s SDM-WDM polarization-multiplexed quadrature phase-shift-keyed (PM-QPSK) transmission on 50 GHz spacing, optical signal-to-noise ratio penalties are less than 1.6 dB in Add, Drop, and Express paths. In addition, we demonstrate the feasibility of utilizing joint signal processing of subchannels in this two-span, ROADM system.
AB - We report a two-span, 67-km space-division-multiplexed (SDM) wavelength-division-multiplexed (WDM) system incorporating the first reconfigurable optical add-drop multiplexer (ROADM) supporting spatial superchannels and the first cladding-pumped multicore erbium-doped fiber amplifier directly spliced to multicore transmission fiber. The ROADM subsystem utilizes two conventional 1 × 20 wavelength selective switches (WSS) each configured to implement a 7 × (1 × 2) WSS. ROADM performance tests indicate that the subchannel insertion losses, attenuation accuracies, and passband widths are well matched to each other and show no significant penalty, compared to the conventional operating mode for the WSS. For 6 × 40 × 128-Gb/s SDM-WDM polarization-multiplexed quadrature phase-shift-keyed (PM-QPSK) transmission on 50 GHz spacing, optical signal-to-noise ratio penalties are less than 1.6 dB in Add, Drop, and Express paths. In addition, we demonstrate the feasibility of utilizing joint signal processing of subchannels in this two-span, ROADM system.
KW - Erbium-doped fiber amplifiers
KW - optical fiber communication
KW - optical fiber networks
KW - wavelength routing
UR - http://www.scopus.com/inward/record.url?scp=84893401084&partnerID=8YFLogxK
U2 - 10.1109/JLT.2013.2283912
DO - 10.1109/JLT.2013.2283912
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AN - SCOPUS:84893401084
SN - 0733-8724
VL - 32
SP - 783
EP - 789
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 4
M1 - 6623116
ER -