Synchronous WDM Soliton Regeneration: Toward 80–160 Gbit/s Transoceanic Systems

Leclerc, O.; Desurvire, E.; Audouin, O.

doi:10.1006/ofte.1997.0219

Cited by 21 publications

(11 citation statements)

References 28 publications

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“…All-optical regeneration offers an energyefficient solution for the removal of both deterministic and stochastic impairments, enabling high-capacity transmission [2][3][4][5][6][7][8]. A nonlinear optical loop mirror (NOLM) proposed in [9] was experimentally demonstrated as an efficient amplitude regenerator [4,[10][11][12], and its cascadability in long-haul transmission systems has been experimentally proved [2,5,13,14].…”

mentioning

confidence: 99%

Design of multilevel amplitude regenerative system

Sorokina

2014

Opt. Lett.

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We propose a scheme for multilevel (nine or more) amplitude regeneration based on a nonlinear optical loop mirror (NOLM) and demonstrate through numerical modeling its efficiency and cascadability on circular 16-, 64-, and 256-symbol constellations. We show that the amplitude noise is efficiently suppressed. The design is flexible and enables variation of the number of levels and their positioning. The scheme is compatible with phase regenerators. Also, compared to the traditional single-NOLM configuration scheme, new features, such as reduced and sign-varied power-dependent phase shift, are available. The model is simple to implement, as it requires only two couplers in addition to the traditional NOLM, and offers a vast range of optimization parameters.

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confidence: 99%

Design of multilevel amplitude regenerative system

Sorokina

2014

Opt. Lett.

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“…The progress in experimental demonstration of all-optical signal regeneration (145)- (148), including phase regeneration, paves the way to new possibilities in the constructive use of nonlinearity. Regeneration may take many forms, ranging from decode-and-forward (allowing the use of FEC in each stage), hard decision (without FEC) (149), transformation with smooth nonlinear transfer functions (TF), which results in noise squeezing (61), and distributed pulse and noise shaping (150). System capacities for the decode-andforward model can be readily calculated from the capacity of a single link channel (151), while another approach is required for hard decision and smooth TF-based regenerators, which can be realized all-optically.…”

Section: Introductionmentioning

confidence: 99%

“…semiconductor optical amplifiers (SOAs) (163)- (166) or fibers (41,61,66) in various subsystem configurations, e.g. Mach-Zehnder (165,166) or non-linear loop mirrors (NOLMs) (41,150,178). It has been shown (41,150,163), (71) that most of them can support large regenerator cascades and bring significant improvements in the overall system transmission rate and transmission distance.…”

Section: Introductionmentioning

confidence: 99%

Shannon Capacity of Nonlinear Communication Channels

Sorokina

Sygletos

Turitsyn

2016

Conference on Lasers and Electro-Optics

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We compute Shannon capacity of nonlinear channels with regenerative elements. Conditions are found under which capacity of such nonlinear channels is higher than the Shannon capacity of the classical linear additive white Gaussian noise channel. We develop a general scheme for designing the proposed channels and apply it to the particular nonlinear sine-mapping. The upper bound for regeneration efficiency is found and the asymptotic behavior of the capacity in the saturation regime is derived.

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“…semiconductor optical amplifiers (SOAs) [19][20][21][22] or fibers [23][24][25][26][27][28][29] in various subsystem configurations, e.g. Mach-Zehnder [21][22] or non-linear loop mirrors (NOLMs) [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Mach-Zehnder [21][22] or non-linear loop mirrors (NOLMs) [24][25][26]. It has been shown [19], [24][25][26], [30] that most of them can support large regenerator cascades and bring significant improvements in the overall system capacity and transmission distance. However, they were primarily designed to address binary channels offering optimization only in the amplitude and pulse shape of the optical signal.…”

Section: Introductionmentioning

confidence: 99%

Optimal packing for cascaded regenerative transmission based on phase sensitive amplifiers

Sorokina¹,

Sygletos²,

Ellis³

et al. 2013

Opt. Express

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Abstract:We investigate the transmission performance of advanced modulation formats in nonlinear regenerative channels based on cascaded phase sensitive amplifiers. We identify the impact of amplitude and phase noise dynamics along the transmission line and show that after a cascade of regenerators, densely packed single ring PSK constellations outperform multi-ring constellations. The results of this study will greatly simplify the design of future nonlinear regenerative channels for ultra-high capacity transmission.

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Synchronous WDM Soliton Regeneration: Toward 80–160 Gbit/s Transoceanic Systems

Cited by 21 publications

References 28 publications

Design of multilevel amplitude regenerative system

Design of multilevel amplitude regenerative system

Shannon Capacity of Nonlinear Communication Channels

Optimal packing for cascaded regenerative transmission based on phase sensitive amplifiers

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