Advanced Modulation Formats for High-Capacity Optical Transport Networks

Winzer, Peter J.; Essiambre, René-Jean

doi:10.1109/jlt.2006.885260

Cited by 433 publications

(183 citation statements)

References 112 publications

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“…It is well known that advanced optical modulation formats have become of great importance to enable high-capacity optical transport networks [20] where wavelength conversion function is highly desired. The nonlinear response of graphene is very high and essentially dispersionless over the wavelength.…”

Section: Graphene-enhanced Nonlinear Optical Device For Optical Transmentioning

confidence: 99%

“…Wavelength conversion at 2.5 Gb/s in a single microring [31] and 10 Gb/s in a silicon-cascaded microring resonator [32] have been demonstrated. On the other hand, it is well known that advanced optical modulation formats have become of great importance to enable high-capacity optically routed transport networks and design of modern wavelength-division multiplexed (WDM) fiber systems [20]. However, all-optical wavelength conversions of advanced optical modulation formats have not been realized in integrated ring structures.…”

Section: Gsmr-enhanced Nonlinear Optical Device For On-chip Optical Smentioning

confidence: 99%

“…[19]. Advanced optical modulation formats play an important role in enabling high-capacity optical transport networks [20] where wavelength conversion function is highly desired.…”

Section: Introductionmentioning

confidence: 99%

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Graphene-Enhanced Optical Signal Processing

Wang¹,

Hu²

2017

Graphene Materials - Advanced Applications

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Graphene has emerged as an attractive material for a myriad of optoelectronic applications due to its variety of remarkable optical, electronic, thermal and mechanical properties. So far, the main focus has been on graphene based photonics and optoelectronics devices. Due to the linear band structure allowing interband optical transitions at all photon energies, graphene has remarkably large third-order optical susceptibility χ (3) , which is only weakly dependent on the wavelength in the near-infrared frequency range. Graphene possesses the properties of the enhancement four-wave mixing (FWM) of conversion efficiency. So, we believe that the potential applications of graphene also lies in nonlinear optical signal processing, where the combination of its unique large χ (3) nonlinearities and dispersionless over the wavelength can be fully exploited. In this chapter, we give a brief overview of our recent progress in graphene-assisted nonlinear optical device which is graphene-coated optical fiber and graphene-silicon microring resonator and their applications, including degenerate FWM based tunable wavelength conversion of quadrature phase-shift keying (QPSK) signal, two-input optical computing, three-input high-base optical computing, graphene-silicon microring resonator enhanced nonlinear optical device for on-chip optical signal processing, and nonlinearity enhanced graphenesilicon microring for selective conversion of flexible grid multi-channel multi-level signal.

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Section: Graphene-enhanced Nonlinear Optical Device For Optical Transmentioning

confidence: 99%

Section: Gsmr-enhanced Nonlinear Optical Device For On-chip Optical Smentioning

confidence: 99%

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Graphene-Enhanced Optical Signal Processing

Wang¹,

Hu²

2017

Graphene Materials - Advanced Applications

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“…Advantages of using PSK modulation formats include higher receiver sensitivity over conventional OOK systems and suitability for multi-level signaling [116][117][118]. However, unlike the OOK signals, the PSK signals are sensitive to phase noise.…”

Section: All-optical 2r Regeneration Of Phase-encoded Signalsmentioning

confidence: 99%

Nonlinear loop mirror-based all-optical signal processing in fiber-optic communications

Boscolo

Turitsyn

Blow

2008

Optical Fiber Technology

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All-optical data processing is expected to play a major role in future optical communications. The fiber nonlinear optical loop mirror (NOLM) is a valuable tool in optical signal processing applications. This paper presents an overview of our recent advances in developing NOLM-based all-optical processing techniques for application in fiber-optic communications. The use of in-line NOLMs as a general technique for all-optical passive 2R (reamplification, reshaping) regeneration of return-to-zero (RZ) on-off keyed signals in both high-speed, ultralong-distance transmission systems and terrestrial photonic networks is reviewed. In this context, a theoretical model enabling the description of the stable propagation of carrier pulses with periodic all-optical self-regeneration in fiber systems with in-line deployment of nonlinear optical devices is presented. A novel, simple pulse processing scheme using nonlinear broadening in normal dispersion fiber and loop mirror intensity filtering is described, and its employment is demonstrated as an optical decision element at a RZ receiver as well as an in-line device to realize a transmission technique of periodic all-optical RZ-non-return-to-zero-like format conversion. The important issue of phase-preserving regeneration of phase-encoded signals is also addressed by presenting a new design of NOLM based on distributed Raman amplification in the loop fiber.

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“…Advanced modulation formats [1] allow us to design optical systems with a bit rate per channel of 40 Gb/s or higher and good tolerance against linear and nonlinear impairments. The complete substitution of deployed nonreturn to zero on-off keying (NRZ-OOK) systems is a very expensive option, thus a cost effective solution is to upgrade one or more selected channels, following the market demand.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo Estimation of PDM-QPSK/OOK and DQPSK/OOK Hybrid Systems Tolerance Against Nonlinear Effects

Bertolini

Serena

Rossi

et al. 2009

IEEE Photon. Technol. Lett.

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Abstract-We compare through Monte Carlo simulations the performance of polarization-division multiplexed quadrature phase-shift keying (PDM-QPSK)/on-off keying (OOK) and differential QPSK (DQPSK)/OOK hybrid systems, taking into account nonlinear phase noise. DQPSK turns out to be better with optimal dispersion-management, while PDM-QPSK proves to be a good candidate for bit rates higher than 40 Gb/s.

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Advanced Modulation Formats for High-Capacity Optical Transport Networks

Cited by 433 publications

References 112 publications

Graphene-Enhanced Optical Signal Processing

Graphene-Enhanced Optical Signal Processing

Nonlinear loop mirror-based all-optical signal processing in fiber-optic communications

Monte Carlo Estimation of PDM-QPSK/OOK and DQPSK/OOK Hybrid Systems Tolerance Against Nonlinear Effects

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