| Original Articles |
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Influence of Higher-Order Dispersions and Raman Delayed Response on Modulation Instability in Microstructured Fibres |
| WEN Shuang-Chun1,2;SU Wen-Hua2;Zhang Hua1;FU Xi-Quan2;QIAN Lie-Jia2;FAN Dian-Yuan2,3 |
| 1Department of Communication Engineering, School of Computer and Communication, Hunan University, Changsha 410082
2Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433
3National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Cite this article: |
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WEN Shuang-Chun, SU Wen-Hua, Zhang Hua et al 2003 Chin. Phys. Lett. 20 852-854 |
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Abstract Modulation instability (MI) in microstructured photonic crystal fibres is studied by using an extended nonlinear Schrödinger equation. The roles of arbitrary higher-order dispersions and Raman delayed response in MI are identified. It is shown that all the odd-order dispersions contribute nothing to MI, whereas all the even-order dispersions not only affect the conventional instability regions but also may lead to the appearance of new MI regions. Raman delayed response makes MI occur in both the normal and anomalous dispersive regimes and exerts different influences on the Stokes and anti-Stokes components to some extent.
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| Keywords:
42.65.Sf
42.65.Re
42.65.Tg
42.81.Dp
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Published: 01 June 2003
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| PACS: |
42.65.Sf
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(Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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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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