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Solitons in Nonlinear Directional Couplers with Optical Metamaterials by Trial Function Scheme

100%

Arnous A., Ekici M., Moshokoa S., Zaka Ullah M., Biswas A., Belic M.

Acta Physica Polonica A

2017

vol. 132

issue 4

1399-1410

This paper obtains soliton solutions to nonlinear directional couplers in optical metamaterials by the aid of trial function method. Three types of couplers are studied. Four forms of nonlinearity are considered. Bright, dark, and singular soliton solutions are retrieved. These soliton solutions appear with certain constraint conditions that guarantee their existence.

Amplification of solitary optical waves in fibers with positive group velocity dispersion

64%

Arabadzhiev T., Uzunov I.

Open Physics

2007

vol. 5

issue 1

62-69

Solitary optical waves with characteristic red frequency shift have been numerically identified in fibers with positive group velocity dispersion in the presence of amplification by semiconductor amplifiers. Influence of the Henry factor, the net gain, gain saturation characteristics, and frequency modulation on the frequency shift of the observed solitary optical waves has been examined. Normalized pulse energy as a function of the gain saturation characteristics has been studied.

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1 Acta Physica Polonica A

1 Open Physics

1 2017

1 2007

1 Arabadzhiev T.

1 Arnous A.

1 Belic M.

1 Biswas A.

1 Ekici M.

1 Moshokoa S.

1 Uzunov I.

1 Zaka Ullah M.

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Solitons in Nonlinear Directional Couplers with Optical Metamaterials by Trial Function Scheme

Amplification of solitary optical waves in fibers with positive group velocity dispersion