Thursday, 22 September, 2011
09:00 -- 10:45
Room B

Th.11.B • OFDM III

Chair: Huug De Waardt; COBRA-TU Eindhoven, Netherlands
 
Th.11.B.1 • 09:00
TRANSMISSION OF 35-GB/S ALL-OPTICAL OFDM SIGNAL OVER AN ALL-EDFA 1980-KM RECIRCULATING LOOP CONSISTING OF SSMF AND DCF WITHOUT USING TUNABLE DISPERSION COMPENSATION
Inuk Kang1, Sethumadhavan Chandrasekhar1, Mahmoud Rasras2, Xiang Liu1, Mark Cappuzzo2, Lou Gomez2, Yifan Chen2, Larry Buhl1, Steve Cabot3, James Jaques3; 1Bell Labs, USA; 2Bell Labs, USA; 3LGS Innovations, USA.
We demonstrate long-haul transmission of 35-Gb/s (7 x 5 Gb/s NRZ-OOK) all-optical OFDM signal. We achieve bit error ratio of 3.3x10-3 for transmission over 1980-km span consisting of SSMF and DCF without using tunable dispersion compensation.
 
Th.11.B.2 • 09:15
IMPROVING THE SENSITIVITY OF DIRECT-DETECTION OPTICAL OFDM SYSTEMS BY PAIRING OF THE OPTICAL SUBCARRIERS
Yi Hong1, Emanuele Viterbo1, Arthur J. Lowery1; 1Electrical and Computer Systems Engineering, Monash University, Australia.
This paper introduces subcarrier pairing to optical OFDM systems and shows, using simulations, that the OSNR sensitivity of DDO-OFDM systems can be improved by 0.7 dB using only simple computations.
 
Th.11.B.3 • 09:30 (Invited)
WILL 100 GB/S RESIST HIGHER BIT RATES?
Jeremie Renaudier1, Oriol Bertran Pardo1, Massimiliano Salsi1, Haik Mardoyan1, Patrice Tran1, Gabriel Charlet1, Sebastien Bigo1; 1Alcatel-Lucent, Bell Labs, France.
We review recent progress on high bit rate long-haul optical transport systems, with spectral efficiency times transmission distance as the main figure-of-merit. We discuss the potential of 100-Gb/s transport systems to survive higher bit rates, through ultra-dense channel packing and multiple-optical-carrier techniques.
 
Th.11.B.4 • 10:00
EXPERIMENTAL DEMONSTRATION OF PILOT-BASED XPM NONLINEARITY COMPENSATOR FOR CO-OFDM SYSTEMS
Liang B. Du1, Arthur Lowery1; 1Electrical and Computer Systems Engineering, Monash University, Australia.
We experimentally demonstrate that pilot-based nonlinearity compensation is effective for mitigating XPM for CO-OFDM systems. In a 400-km periodic dispersion map, the nonlinearity limit was increased by 5 dB if used together with SPM compensation.
 
Th.11.B.5 • 10:15
MITIGATION OF EQUALIZATION-ENHANCED PHASE NOISE USING REDUCED-GUARD-INTERVAL CO-OFDM
Qunbi Zhuge1, Benoît Châtelain1, Chen Chen1, David V. Plant1; 1Electrical & Computer Engineering, McGill University, Canada.
We demonstrate that reduced-guard-interval (RGI) CO-OFDM systems are more tolerant to equalization-enhance phase noise (EEPN), which is a non-negligible impairment of single-carrier systems in long-haul transmissions, especially for next generation transport systems.
 
Th.11.B.6 • 10:30
7 X 463-GBIT/S OPTICAL OFDM TRANSMISSION AT 100-GHZ WDM SPACING OVER 960 KM OF SSMF WITH EDFA-ONLY AMPLIFICATION
Hidenori Takahashi1, Wei-Ren Peng1, Itsuro Morita1, Hideaki Tanaka1; 1KDDI R&D Laboratories Inc., Japan.
We have demonstrated 7 x 463-Gbit/s Optical OFDM transmission over 960 km of SSMF with EDFA-only amplification at 100-GHz WDM spacing. It is confirmed that the intra-channel penalty is dominant compared to inter-channel penalty.

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