1800 Gb/s transmission of one hundred and eighty 10 Gb/s WDM channels over 7000 km using the full EDFA C-band

Davidson, Carl; Chen, C.J.; Nissov, M.; Pilipetskii, A.N.; Ramanujam, N.; Kidorf, H.D.; Pedersen, B.; Mills, M.A.; Lin, Chun-Ting; Hayee, M.I.; Cai, J.-X.; Puc, A.; Corbett, P.C.; Menges, R.; Li, H.; Elyamani, A.; Rivers, C.; Bergano, Neal S.

doi:10.1109/ofc.2000.869470

Cited by 15 publications

(6 citation statements)

References 2 publications

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“…Concatenated codes offer an easy and simple way to construct a powerful coding scheme with low decoding complexity. They have been widely deployed within the new generation of submarine systems [2][3][4]. The principle of concatenated codes is presented in the next section.…”

Section: Standard Fec Scheme: Reed-solomon Codesmentioning

confidence: 99%

“…It was introduced first in submarine transmission systems in the early 1990s [1]. During the last decade, FEC development for optical transmission was made by submarine transmission system suppliers [2][3][4]. The explosion in demand of transmission capacity and the need to reduce costs in long-haul and ultra long-haul transmission systems are now driving to the use of more powerful FEC codes in both submarine and terrestrial systems.…”

Section: Introductionmentioning

confidence: 99%

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Signal formats and error correction in optical transmission

Sab¹,

Bissessur²

2003

Comptes Rendus. Physique

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We review the advantages and drawbacks of the main optical modulation formats, comparing the standard intensitymodulated ones to more sophisticated phase and intensity modulated formats for high capacity or long distance transmission. Furthermore, different Forward Error Correction solutions, from standard Reed Solomon (RS) to block turbo codes, are presented and their impact on optical transmission system design is discussed. To cite this article: O.

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Section: Standard Fec Scheme: Reed-solomon Codesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Signal formats and error correction in optical transmission

Sab¹,

Bissessur²

2003

Comptes Rendus. Physique

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“…In WDM systems with more than two wavelength channels, the SSC-induced time shift for a soliton in the th channel can be expressed as (4) where represents the time shift of a soliton in the th channel after each collision with a soliton in the th channel, and represents the number of collisions a soliton in the th channel experiences with solitons in the th channel. Using (1)-(3) for each pair of channels and then summing the results over all channels, the average SSC-induced time shift for solitons in the th channel is given by [17] (5)…”

Section: Given the System Parameters mentioning

confidence: 99%

“…T HE GROWTH in demand for broad-band services has led to much increased activity in research for high capacity systems and networks [1]- [4]. It is predicted that all-optical soliton systems will play an important role in future networks.…”

Section: Introductionmentioning

confidence: 99%

Sliding window criterion codes and concatenation scheme for mitigating timing-jitter-induced errors in WDM fiber transmissions

Cai

Menyuk

Morris

2002

J. Lightwave Technol.

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We propose a concatenated coding scheme, which effectively reduces bit errors induced by soliton-soliton collisions (SSC) in wavelength division multiplexing (WDM) soliton transmission systems. A block line coding scheme, the sliding window criterion (SWC) code, is developed based on the nature of SSC-induced timing jitter in soliton communications. We show, by simplified collision model simulations, that the SWC code alone can decrease the SSC-induced timing jitter and, by concatenation to a Reed-Solomon (RS) code, improve both the bit rate and the channel spacing capacity in WDM systems. We compare the performance of our scheme both analytically and by simulations with those of various RS codes and concatenated RS-convolutional code used in optical fiber transmission systems, and show that high redundancy (overhead) does not always give better code performance. Finally, by using full simulations, we show that the SWC code is an effective and promising technique for dispersion-managed fiber WDM systems.

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“…3b. Using the current generation of 25% forward errorcorrection (FEC) error-free transmission can be obtained with a Q factor above 8.5 [5]. We see that all the measured channels have a Q factor well above the FEC threshold for a channel spacing of 66 GHz, and the average Q factor was 11.5 dB after 6500 km.…”

mentioning

confidence: 85%

Transmission of RZ-DQPSK over 6500 km with 0.66 bit/s/Hz spectral efficiency

Tokle¹,

Davidson²,

Nissov³

et al.

IEEE/LEOS Workshop on Advanced Modulation Formats, 2004

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Transmission of 12.5 Gbit/s RZ-DQPSK signals over 6500 km with different channel spacings is presented. We demonstrate the feasibility of trans-oceanic transmission using DQPSK in DWDM systems with up to 0.66 bit/s/Hz spectral efficiency.Introduction: Differential quadrature phase shift keying (DQPSK) has recently been suggested as a suitable modulation format for optical communication systems [1]. With DQPSK, two bits are transmitted for every symbol, thus the symbol rate and the bandwidth of all electronic and electro-optical components can be halved compared to a binary system. This leads to improved dispersion tolerance and allows for closer channel spacing in wavelength division multiplexing (WDM) systems, and very high spectral efficiency have been obtained in recent experiments [2-4]. As differential binary phase shift keying (DBPSK), DQPSK also benefits from a 3 dB improved sensitivity when balanced detection is used.Here, we present a transmission experiment over transoceanic distances using optical DQPSK modulation format with a return-to-zero waveform (RZ-DQPSK). In a 64 channel WDM system experiment, we transmit 12.5 Gbit/s RZ-DQPSK signals over a distance of 6500 km. We investigate channel spacings ranging from 133 to 15 GHz, achieving a maximum spectral efficiency of 0.66 bit/s/Hz, and demonstrate that DQPSK is well suited for dense WDM (DWDM) applications.

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1800 Gb/s transmission of one hundred and eighty 10 Gb/s WDM channels over 7000 km using the full EDFA C-band

Cited by 15 publications

References 2 publications

Signal formats and error correction in optical transmission

Signal formats and error correction in optical transmission

Sliding window criterion codes and concatenation scheme for mitigating timing-jitter-induced errors in WDM fiber transmissions

Transmission of RZ-DQPSK over 6500 km with 0.66 bit/s/Hz spectral efficiency

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