Nonlinear Phase Noise in Phase-Modulated WDM Fiber-Optic Communications

Yadin, Y.; Shtaif, Mark; Orenstein, Meir

doi:10.1109/lpt.2004.826257

Cited by 32 publications

(14 citation statements)

References 8 publications

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“…Moreover, the statistics of NLPN have been evaluated experimentally in [16]. It was shown in [13], [14], [17] that the NLPN distribution cannot be approximated by a Gaussian distribution.…”

Section: Introductionmentioning

confidence: 99%

Signal Statistics in Fiber-Optical Channels With Polarization Multiplexing and Self-Phase Modulation

Beygi

Agrell

Karlsson

et al. 2011

J. Lightwave Technol.

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Abstract-In this paper, the statistics of received signals in a single-channel dispersion-managed dual-polarization fiber-optical channel are derived in the limit of low dispersion. The joint probability density function (pdf) of the received amplitudes and phases of such a system is derived for both lumped and distributed amplification. The new pdf expressions are used to numerically evaluate the performance of modulation formats over channels with nonlinear phase noise. For example, a sensitivity gain of up to 2 dB is calculated for a specific system using polarization-multiplexed 8-ary phase shift keying compared with a similar single-polarization system at the same spectral efficiency and a symbol error rate of 5 × 10 −4 . Moreover, the accuracy of the derived pdf is evaluated for some single-channel dispersionmanaged fiber-optical links with different dispersion-maps using the split-step Fourier transform method.

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“…Moreover, the statistics of NLPN have been evaluated experimentally in [16]. It was shown in [13], [14], [17] that the NLPN distribution cannot be approximated by a Gaussian distribution.…”

Section: Introductionmentioning

confidence: 99%

Signal Statistics in Fiber-Optical Channels With Polarization Multiplexing and Self-Phase Modulation

Beygi

Agrell

Karlsson

et al. 2011

J. Lightwave Technol.

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“…Attempts have been made to theoretically study the statistics of the nonlinear phase noise in order to assess the bit error rate (BER) of binary differential PSK (DPSK) receivers based on ideal phase discriminators, but an exact expression of these statistics was found only at zero group-velocity dispersion (GVD) [6], [7] while an approximate expression including GVD based on a phenomenological argument was presented in [8].…”

Section: Introductionmentioning

confidence: 99%

Parametric-gain approach to the analysis of single-channel DPSK/DQPSK systems with nonlinear phase noise

Serena

Orlandini

Bononi

2006

J. Lightwave Technol.

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Abstract-This paper presents a novel method based on a parametric gain (PG) approach to study the impact of nonlinear phase noise in single-channel dispersion-managed differentially phase-modulated systems. This paper first shows through Monte Carlo simulations that the received amplified spontaneous emission (ASE) noise statistics, before photodetection, can be reasonably assumed to be Gaussian, provided a sufficiently large chromatic dispersion is present in the transmission fiber. This paper then evaluates in a closed form the ASE power spectral density by linearizing the interaction between a signal and a noise in the limit of a distributed system. Even if the received ASE is nonstationary in time due to pulse shape and modulation, this paper shows that it can be approximated by an equivalent stationary process, as if the signal were continuous wave (CW). This paper then applies the CW-equivalent ASE model to bit-error-rate evaluation by using an extension of a known Karhunen-Loéve method for quadratic detectors in colored Gaussian noise. Such a method avoids calculation of the nonlinear phase statistics and accounts for intersymbol interference due to a nonlinear waveform distortion and optical and electrical postdetection filtering. This paper compares binary and quaternary schemes with both nonreturn-and return-to-zero (RZ) pulses for various values of nonlinear phases and bit rates. The results confirm that PG deeply affects the system performance, especially with RZ pulses and with quaternary schemes. This paper also compares ON-OFF keying (OOK) differential phase-shifted keying (DPSK) systems, showing that the initial 3-dB advantage of DPSK is lost for increasing nonlinear phases because DPSK is less robust to PG than OOK.Index Terms-Differential phase-shift keying (DPSK), differential quadrature phase-shift keying (DQPSK), Karhunen-Loéve (KL) transforms, nonlinear phase noise, parametric gain (PG).

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“…Moreover, Y. Yadin et al have demonstrated that the nonlinear phase noise, as well as the overall error probability of DPSK systems agree well with the Gaussian approximation[11] [12], and then the error probability of the I and Q branches can be…”

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confidence: 77%

Impact of nonlinear phase noise on direct detection DQPSK systems

Huang

Zhang

et al. 2005

SPIE Proceedings

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The error probability of differential quadrature phase-shift keying (DQPSK) systems is analyzed considering both selfand cross-phase modulation (SPM and XPM)-induced nonlinear phase noise. XPM-induced nonlinear phase noise is treated here as Gaussian distributed phase noise. In DQPSK systems where group velocity dispersion (GVD) is perfectly compensated span after span, the influence of XPM-induced nonlinear phase noise on the error bribability performance can be dominant compared with that of the SPM-induced nonlinear phase noise. The 10-Gb/s systems, whose walkoff length is larger than that of the 40 Gb/s systems, are more sensitive to XPM-induced nonlinear phase noise.

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Nonlinear Phase Noise in Phase-Modulated WDM Fiber-Optic Communications

Cited by 32 publications

References 8 publications

Signal Statistics in Fiber-Optical Channels With Polarization Multiplexing and Self-Phase Modulation

Signal Statistics in Fiber-Optical Channels With Polarization Multiplexing and Self-Phase Modulation

Parametric-gain approach to the analysis of single-channel DPSK/DQPSK systems with nonlinear phase noise

Impact of nonlinear phase noise on direct detection DQPSK systems

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