TY - JOUR
T1 - 121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz spectral efficiency over 1000 km of SSMF
AU - Jansen, Sander Lars
AU - Morita, Itsuro
AU - Schenk, Tim C.W.
AU - Tanaka, Hideaki
N1 - Funding Information:
Manuscript received July 15, 2008; revised October 03, 2008. Current version published February 13, 2009. This work was supported in part by a project of the National Institute of Information and Communications Technology of Japan. S. L. Jansen was with KDDI R&D Laboratories, Saitama, 356-8502 Japan. He is now with Nokia Siemens Networks, 81827 Munich (e-mail: Sander.Jansen@nsn.com). I. Morita and H. Tanaka are with KDDI R&D Laboratories, Saitama, 3568502 Japan (e-mail: Morita@kddilabs.jp; hide@kddilabs.jp). T. C. W. Schenk is with Philips Research, Eindhoven, 5656 AE The Netherlands (e-mail: Tim.Schenk@philips.com). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/JLT.2008.2007972
PY - 2009/2/1
Y1 - 2009/2/1
N2 - We discuss optical multi-band orthogonal frequency division multiplexing (OFDM) and show that by using multiple parallel OFDM bands, the required bandwidth of the digital-to-analogue/analogue-to-digital converters and the required cyclic prefix can significantly be reduced. With the help of four OFDM bands and polarization division multiplexing (PDM) we report continuously detectable transmission of 10 × 121.9-Gb/s (112.6-Gb/s without OFDM overhead) at 50-GHz channel spacing over 1,000-km standard single mode fiber (SSMF) without any inline dispersion compensation. In this experiment 8 QAM subcarrier modulation is used which confines the spectrum of the 121.9 Gb/s PDM-OFDM signal within a 22.8 GHz optical bandwidth. Moreover, we propose a digital signal processing method to reduce the matching requirements for the wideband transmitter IQ mixer structures required for PDM-OFDM.
AB - We discuss optical multi-band orthogonal frequency division multiplexing (OFDM) and show that by using multiple parallel OFDM bands, the required bandwidth of the digital-to-analogue/analogue-to-digital converters and the required cyclic prefix can significantly be reduced. With the help of four OFDM bands and polarization division multiplexing (PDM) we report continuously detectable transmission of 10 × 121.9-Gb/s (112.6-Gb/s without OFDM overhead) at 50-GHz channel spacing over 1,000-km standard single mode fiber (SSMF) without any inline dispersion compensation. In this experiment 8 QAM subcarrier modulation is used which confines the spectrum of the 121.9 Gb/s PDM-OFDM signal within a 22.8 GHz optical bandwidth. Moreover, we propose a digital signal processing method to reduce the matching requirements for the wideband transmitter IQ mixer structures required for PDM-OFDM.
KW - Chromatic dispersion compensation
KW - Fiber-optic transmission systems
KW - Long-haul transmission
KW - Orthogonal frequency-division multiplexing (OFDM)
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U2 - 10.1109/JLT.2008.2007972
DO - 10.1109/JLT.2008.2007972
M3 - Article
AN - SCOPUS:61649113999
SN - 0733-8724
VL - 27
SP - 177
EP - 188
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 3
ER -