| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Pulse Propagation with Self-Phase Modulation in Nonlinear Chiral Fiber and Its Applications |
| Demissie Gelmecha1,2, Jun-Qing Li1** Merhawit Teklu3 |
1Department of Physics, Harbin Institute of Technology, Harbin 150001
2Department of Electronic Science and Technology, Harbin Institute of Technology, Harbin 150001
3Communication Research Center, Harbin Institute of Technology, Harbin 150001
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| Cite this article: |
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Demissie Gelmecha, Jun-Qing Li Merhawit Teklu 2016 Chin. Phys. Lett. 33 094202 |
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Abstract From Maxwell's equations and Post's formalism, a generalized chiral nonlinear Schr?dinger equation (CNLSE) is obtained for the nonlinear chiral fiber. This equation governs light transmission through a dispersive nonlinear chiral fiber with joint action of chirality in linear and nonlinear ways. The generalized CNLSE shows a modulation of chirality to the effect of attenuation and nonlinearity compared with the case for a conventional fiber. Simulations based on the split-step beam propagation method reveal the role of nonlinearity with cooperation to chirality playing in the pulse evolution. By adjusting its strength the role of chirality in forming solitons is demonstrated for a given circularly polarized component. The application of nonlinear optical rotation is also discussed in an all-optical switch.
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Received: 23 March 2016
Published: 30 September 2016
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| PACS: |
42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.65.Jx
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(Beam trapping, self-focusing and defocusing; self-phase modulation)
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42.81.Gs
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(Birefringence, polarization)
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42.70.Nq
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(Other nonlinear optical materials; photorefractive and semiconductor materials)
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