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Second-Harmonic Generation in Optical Fibres Induced by a Cross-Phase Modulation Effect |
| CUI Wei-Na;HUANG Guo-Xiang |
| Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094
Department of Physics, East China Normal University, Shanghai 200062 |
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| Cite this article: |
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CUI Wei-Na, HUANG Guo-Xiang 2005 Chin. Phys. Lett. 22 3083-3086 |
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Abstract When two optical pulses copropagate inside a single-mode fibre, intensity-dependent refractive index couples the pulses through a cross-phase modulation (XPM). We show that a second-harmonic generation (SHG) on a continuous-wave background is possible in the optical fibre induced by the XPM effect. By means of a multi-scale method the nonlinearly coupled envelope equations for the SHG are derived and their explicit solutions are provided and discussed.
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| Keywords:
42.65.Ky
42.65.Tg
42.81.Dp
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Published: 01 December 2005
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| PACS: |
42.65.Ky
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(Frequency conversion; harmonic generation, including higher-order harmonic generation)
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42.65.Tg
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(Optical solitons; nonlinear guided waves)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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