Effect of pulse chirp parameter on the soliton high-speed transmission systems

L. Ladanyi; L. Scholtz; M. Solanska; J. Mullerova

doi:10.1117/12.2264674

23 December 2016 Effect of pulse chirp parameter on the soliton high-speed transmission systems

L. Ladanyi, L. Scholtz, M. Solanska, J. Mullerova

Proceedings Volume 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 101421N (2016) https://doi.org/10.1117/12.2264674
Event: 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2016, Jasna, Slovakia

Abstract

The word soliton refers to a special kind of wave packets that can propagate undistorted over long distances. As a source for generating soliton pulses in 1990 erbium doped lasers were used. Soliton transmission systems have been the subject of interest for years. It is known that interaction and the balance between the dispersion and nonlinear effects in optical fibers can lead to a special pulse behavior. Soliton pulses can propagate without any changes of the amplitude and the shape via long transmission systems. Due to this advantage they are of interest in long haul communication systems. Here we describe how the random change of input pulse chirp in optical fibers can affect the soliton propagation and interaction between two or more solitons. We have focused on describing some numerical approaches to solve the coupled nonlinear Schrödinger equations, which are useful by solving this kind of problem. Most of laser sources can be approximated by Gaussian distribution or in special cases the second hyperbolic pulses are generated to produce a soliton shaped pulse. The effect of pulse chirp can generate new frequencies due to the frequency chirp. In high bitratetransmission systems this chirp is very important to reduce, because of this new frequency can influence the neighbor channels and lead to BER increasing.

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L. Ladanyi, L. Scholtz, M. Solanska, and J. Mullerova "Effect of pulse chirp parameter on the soliton high-speed transmission systems", Proc. SPIE 10142, 20th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 101421N (23 December 2016); https://doi.org/10.1117/12.2264674

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KEYWORDS

Solitons

Optical fibers

Nonlinear optics

Wave propagation

Dispersion

Modulation

Gaussian pulse

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