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- Cristian Antonelli, Antonio Mecozzi, Mark Shtaif, Peter J Winzer
- Optics express
- 2012

Modal dispersion (MD) in a multimode fiber may be considered as a generalized form of polarization mode dispersion (PMD) in single mode fibers. Using this analogy, we extend the formalism developed for PMD to characterize MD in fibers with multiple spatial modes. We introduce a MD vector defined in a D-dimensional extended Stokes space whose square length… (More)

- Ronen Dar, Meir Feder, Mark Shtaif
- IEEE Transactions on Information Theory
- 2012

This paper presents a new fading model for multi-input multi-output channels: the Jacobi fading model. It asserts that <formula formulatype="inline"><tex Notation="TeX">${\bf H}$</tex></formula>, the transfer matrix which couples the <formula formulatype="inline"><tex Notation="TeX">$m_{t}$</tex></formula> inputs into <formula formulatype="inline"><tex… (More)

- Ronen Dar, Meir Feder, Antonio Mecozzi, Mark Shtaif
- Optics express
- 2013

We study the properties of nonlinear interference noise (NLIN) in fiber-optic communications systems with large accumulated dispersion. Our focus is on settling the discrepancy between the results of the Gaussian noise (GN) model (according to which NLIN is additive Gaussian) and a recently published time-domain analysis, which attributes drastically… (More)

We present a polarization mode dispersion compensator for the rotation of the principal states with frequency. This compensator requires only two control elements more than existing first-order compensators. These are the position of one polarization controller and the setting of a single delay. With the proposed scheme, compensation for first order can be… (More)

- Eado Meron, Meir Feder, Mark Shtaif
- ArXiv
- 2012

We analyze the achievable communication rates of a generalized soliton-based transmission system for the optical fiber channel. This method is based on modulation of parameters of the scattering domain, via the inverse scattering transform, by the information bits. The decoder uses the direct spectral transform to estimate these parameters and decode the… (More)

- Antonio Mecozzi, Cristian Antonelli, Mark Shtaif
- Optics express
- 2012

We show that light propagation in a group of degenerate modes of a multi-mode optical fiber in the presence of random mode coupling is described by a multi-component Manakov equation, thereby making multi-mode fibers the first reported physical system that admits true multi-component soliton solutions. The nonlinearity coefficient appearing in the equation… (More)

- Ronen Dar, Meir Feder, Antonio Mecozzi, Mark Shtaif
- Optics express
- 2014

Through a series of extensive system simulations we show that all of the previously not understood discrepancies between the Gaussian noise (GN) model and simulations can be attributed to the omission of an important, recently reported, fourth-order noise (FON) term, that accounts for the statistical dependencies within the spectrum of the interfering… (More)

- Cristian Antonelli, Antonio Mecozzi, Mark Shtaif
- Optics express
- 2015

Contrary to single mode fibers, where random imperfections are responsible for polarization-mode dispersion, modal dispersion (MD) in multi-mode fiber structures for space-division multiplexed (SDM) transmission, originates chiefly from the intrinsic non-degeneracy of the propagating modes, also known as modal birefringence. The presence of random… (More)

- Ronen Dar, Mark Shtaif, Meir Feder
- Optics letters
- 2014

We revisit the problem of estimating the nonlinear channel capacity of fiber-optic systems. By taking advantage of the fact that a large fraction of the nonlinear interference between different wavelength-division-multiplexed channels manifests itself as phase noise, and by accounting for the long temporal correlations of this noise, we show that the… (More)

- Antonio Mecozzi, Cristian Antonelli, Mark Shtaif
- Optics express
- 2012

We derive the fundamental equations describing nonlinear propagation in multi-mode fibers in the presence of random mode coupling within quasi-degenerate groups of modes. Our result generalizes the Manakov equation describing mode coupling between polarizations in single-mode fibers. Nonlinear compensation of the modal dispersion is predicted and tested via… (More)