Journal ArticleDOI
Nonlinear Shannon Limit in Pseudolinear Coherent Systems
TLDR
In this article, a general perturbation theory of the propagation of a signal in an optical fiber in the presence of amplification and Kerr nonlinearity was developed, valid for arbitrary pulse shapes.Abstract:
In this paper, we develop a general first-order perturbation theory of the propagation of a signal in an optical fiber in the presence of amplification and Kerr nonlinearity, valid for arbitrary pulse shapes. We obtain a general expression of the sampled signal after optical filtering, coherent detection, and optimal sampling. We include intrachannel and as well as interchannel nonlinear effects. We obtain simplified expressions in the case in which the accumulated dispersion is high (equivalent to the far-field limit in paraxial optics). This general theory is applied in detail to the special case of spectral-efficient sinc pulses. This exercise shows that the characteristics of the neighboring wavelength-division multiplexed channels are essential in determining the nonlinear impairments.read more
Citations
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Journal ArticleDOI
The GN Model of Non-Linear Propagation in Uncompensated Coherent Optical Systems
TL;DR: This paper is devoted to an in-depth discussion of the Gaussian Noise model which describes non-linear propagation in uncompensated coherent transmission systems and its implications as to system and networks design and optimization are discussed.
Journal ArticleDOI
The GN-Model of Fiber Non-Linear Propagation and its Applications
TL;DR: This paper tries to gather the recent results regarding the Gaussian-noise model definition, understanding, relations versus other models, validation, limitations, closed form solutions, approximations and, in general, its applications and implications in link analysis and optimization, also within a network environment.
Journal ArticleDOI
Properties of nonlinear noise in long, dispersion-uncompensated fiber links.
TL;DR: In this article, the authors study the properties of nonlinear interference noise (NLIN) in fiber-optic communications systems with large accumulated dispersion, and derive the true NLIN power and verify that the NLIN is not additive Gaussian, but rather it depends strongly on the data transmitted in the channel of interest.
Journal ArticleDOI
Properties of nonlinear noise in long, dispersion-uncompensated fiber links
TL;DR: The true NLIN power is derived and it is verified that the NLIN is not additive Gaussian, but rather it depends strongly on the data transmitted in the channel of interest.
Journal ArticleDOI
Nonlinear Propagation in Multimode and Multicore Fibers: Generalization of the Manakov Equations
TL;DR: In this article, the authors investigated theoretically nonlinear transmission in space-division multiplexed (SDM) systems using multimode fibers exhibiting rapidly varying birefringence.
References
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Journal ArticleDOI
Capacity Limits of Optical Fiber Networks
TL;DR: In this article, the capacity limit of fiber-optic communication systems (or fiber channels?) is estimated based on information theory and the relationship between the commonly used signal to noise ratio and the optical signal-to-noise ratio is discussed.
Journal ArticleDOI
Advanced Optical Modulation Formats
TL;DR: This paper discusses the generation and detection of multigigabit/s intensity- and phase-modulated formats, and highlights their resilience to key impairments found in optical networking, such as optical amplifier noise, multipath interference, chromatic dispersion, polarization-mode dispersion.
Journal ArticleDOI
Nonlinear limits to the information capacity of optical fibre communications.
TL;DR: This work uses a key simplification to investigate the theoretical limits to the information capacity of an optical fibre arising from these nonlinearities and relates the nonlinear channel to a linear channel with multiplicative noise, for which it is able to obtain analytical results.
Posted Content
Nonlinear limits to the information capacity of optical fiber communications
TL;DR: In this article, the authors show that the capacity of the nonlinear information channel of an optical fiber does not grow indefinitely with increasing signal power, but has a maximal value, which is the same as that of a linear channel with multiplicative noise.
Journal ArticleDOI
Analysis of intrachannel nonlinear effects in highly dispersed optical pulse transmission
TL;DR: In this paper, the authors analyzed intrachannel nonlinear effects in high-bit-rate transmission systems based on short optical pulses that are dispersion compensated and showed that the magnitude of nonlinear impairments reduces monotonically with the reduction of pulse width and with the increase of the dispersion coefficient.