Soliton communication lines based on spectrally efficient modulation formats

Yushko, O V; Redyuk, Alexey

doi:10.1070/qe2014v044n06abeh015382

Cited by 7 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solitons were proposed as the information carriers for the high-capacity fiber-optic communications [11,13,14]. However, on-off keying transmission built on pure fundamental solitons (i.e., where the solitons have been used as individual information-bearing pulses) was affected by the soliton collision problems and ensuing limitations due to the inter-channel cross-talk in wavelength division multiplexing (WDM) lightwave transmission systems [11,15], leading to the reduction in spectral efficiency; although some recent works demonstrated positive results with regard to coherent soliton-based transmission using multilevel modulation [16,17]. Another, less known in the optical communication community, consequence of the NLSE's integrability is that it allows one to present the field evolution within a special basis of nonlinear normal modes, including non-dispersive soliton modes and quasilinear dispersive radiation.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear inverse synthesis for high spectral efficiency transmission in optical fibers

Le¹,

Prilepsky²,

Turitsyn³

2014

Opt. Express

134

158

View full text Add to dashboard Cite

In linear communication channels, spectral components (modes) defined by the Fourier transform of the signal propagate without interactions with each other. In certain nonlinear channels, such as the one modelled by the classical nonlinear Schrödinger equation, there are nonlinear modes (nonlinear signal spectrum) that also propagate without interacting with each other and without corresponding nonlinear cross talk, effectively, in a linear manner. Here, we describe in a constructive way how to introduce such nonlinear modes for a given input signal. We investigate the performance of the nonlinear inverse synthesis (NIS) method, in which the information is encoded directly onto the continuous part of the nonlinear signal spectrum. This transmission technique, combined with the appropriate distributed Raman amplification, can provide an effective eigenvalue division multiplexing with high spectral efficiency, thanks to highly suppressed channel cross talk. The proposed NIS approach can be integrated with any modulation formats. Here, we demonstrate numerically the feasibility of merging the NIS technique in a burst mode with high spectral efficiency methods, such as orthogonal frequency division multiplexing and Nyquist pulse shaping with advanced modulation formats (e.g., QPSK, 16QAM, and 64QAM), showing a performance improvement up to 4.5 dB, which is comparable to results achievable with multi-step per span digital back propagation.

show abstract

Section: Introductionmentioning

confidence: 99%

Nonlinear inverse synthesis for high spectral efficiency transmission in optical fibers

Le¹,

Prilepsky²,

Turitsyn³

2014

Opt. Express

134

158

View full text Add to dashboard Cite

show abstract

“…The topical problems of ultrafast data transmission [1][2][3][4][5][6] usually are described by the nonintegrable system of two coupled nonlinear Schrödinger equations (NSEs) [7][8][9][10][11][12][13][14][15][16] for slowly varying amplitudes of orthogonal components of electric field of propagated elliptically polarized plane electro magnetic wave. For example, for an isotropic nonlinear gyrotropic medium this system of equations can be written down in the following form…”

Section: Introductionmentioning

confidence: 99%

The distinctive feature of long time adiabatic modulation in the context of cnoidal wave and Akhmediev breaser interaction

Makarov¹,

Petnikova²

2017

Laser Phys.

View full text Add to dashboard Cite

For a nonintegrable system of two coupled nonlinear Schrödinger equations the adiabatic approximation is extended for long time interaction. The method enables analytical description of the modulation of a cnoidal wave by Akhmediev breather in an isotropic nonlinear gyrotropic medium with Kerr nonlinearity and second-order group-velocity dispersion. The conditions which must be fulfilled for stable propagation of the obtained solution with amplitude and frequency modulation are determined.

show abstract

“…This follows from some rather evident reasons. Firstly, the use of optical solitons is a very promising tool in ultra-fast data transmission [12][13][14]. Therefore, solution of the interaction problem provides the answer to a crucial question about possibility or impossibility of simultaneous transmission of multiple streams of undistorted optical information through the common channel.…”

Section: Introductionmentioning

confidence: 99%

Adiabatic modulation of a cnoidal wave by a breather with orthogonal circular polarization in an isotropic gyrotropic nonlinear medium

2014

View full text Add to dashboard Cite

An approximate analytical solution of the non-integrable problem of steady-state adiabatic interaction of a cnoidal wave with a breather is obtained. The solving algorithm is described by the example of one-dimensional problem of steady-state interaction of a plane cnoidal wave with circular polarization (the "information" signal) with orthogonally polarized rational soliton (the "control" signal) in an isotropic nonlinear gyrotropic medium with Kerr nonlinearity and second-order group-velocity dispersion. It is shown that such the interaction results in a strong amplitude and frequency modulation of the information signal and this modulation is localized in the region where intensity of the control signal changes.

show abstract

Soliton communication lines based on spectrally efficient modulation formats

Cited by 7 publications

References 18 publications

Nonlinear inverse synthesis for high spectral efficiency transmission in optical fibers

Nonlinear inverse synthesis for high spectral efficiency transmission in optical fibers

The distinctive feature of long time adiabatic modulation in the context of cnoidal wave and Akhmediev breaser interaction

Adiabatic modulation of a cnoidal wave by a breather with orthogonal circular polarization in an isotropic gyrotropic nonlinear medium

Contact Info

Product

Resources

About