Characterization of the impact of non-linear effects in coherent transmission experiments

Bigo, S.; Charlet, G.; Pardo, Oriol Bertran; Renaudier, Jérémie

doi:10.1109/leosst.2008.4590521

Cited by 8 publications

(6 citation statements)

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“…As expected, the -factor is always better at 100 GHz, but this effect is more evident for DQPSK ( 2 dB) than for 40/80G PDM-QPSK ( 1 and 0.3 dB, respectively). This is probably due to the fact that increasing the channel spacing does not reduce nonlinear depolarization [10]. A possible solution to improve PDM-QPSK robustness against SPM and XPM is to improve the phase estimation algorithm.…”

Section: Resultsmentioning

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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Section: Resultsmentioning

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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“…Since the optical filter also gives a spectral shaping to the phase [31], it is sufficient to restrict the range of integration to the bandwidth of the optical filter [10]. Also, it can be shown that , so that finally the variance expression simplifies to (7) Note that, when we can approximate , then from (23) and thus from (5) we get (see Appendix III): which is the approximate expression used by Ho ([10], (9), where is assumed). Such an approximation, while reasonable at 100 GHz channel spacing, becomes more critical at 50 GHz spacing.…”

Section: A Dqpskmentioning

confidence: 99%

Cross-Phase Modulation Induced by OOK Channels on Higher-Rate DQPSK and Coherent QPSK Channels

Bononi

Bertolini

Serena

et al. 2009

J. Lightwave Technol.

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Abstract-In this paper we show that, in hybrid wavelength division multiplexed systems, the performance of high datatrate QPSK channels impaired by cross-phase modulation (XPM) induced by the lower rate OOK channels can be simply estimated by an extension of a well-known linear model for XPM, and novel analytical expressions of the sensitivity penalty are provided. From such a model we prove that the reported QPSK penalty decrease with QPSK baudrate increase should be attributed to the action of the phase estimation process rather than to the walkoff effect. The model also simply shows how coherent QPSK is more affected by XPM than incoherent DQPSK, and allows to infer that even more impact is expected when the baudrate is further reduced through polarization multiplexing.Index Terms-Cross phase modulation (XPM), differential quadrature phase shift keying (DQPSK), phase estimation, phase shift keying.

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“…With the evolution of transmission technologies and the increase of data traffic, optical networks have continuously adopted faster interfaces, today offering bit rates of 10 Gb/s and 40 Gb/s, with 100 Gb/s already widely reported in research and development laboratories [7,9,10]. At the same time, photonic networks are able to manage hundreds of wavelengths through a single optical fiber carrying data traffic in the range of terabits per second.…”

Section: Introductionmentioning

confidence: 99%

Wavelength layer recovery in transparent optical networks

Morea¹,

Kilper²,

Verchere³

et al. 2010

Bell Labs Tech. J.

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degradation can cause a loss of several hundreds of gigabytes of data per second. As repair of a fiber break may take several hours, network operators need to be able to restore the lost traffic demands by rerouting the affected traffic around the network failure. Consequently there is increasing motivation to utilize fast wavelength recovery capabilities and thereby minimize the wavelength service interruption time and congestion due to protection implemented in the higher layers.

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Characterization of the impact of non-linear effects in coherent transmission experiments

Cited by 8 publications

References 0 publications

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

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

Cross-Phase Modulation Induced by OOK Channels on Higher-Rate DQPSK and Coherent QPSK Channels

Wavelength layer recovery in transparent optical networks

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