| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Effects of Input Spectra on the Threshold of Modulation Instability in a Single-Mode Fiber |
| CHEN Wei,MENG Zhou**,ZHOU Hui-Juan,LUO Hong |
| Department of Optic Information Science and Technology, College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 |
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| Cite this article: |
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CHEN Wei, MENG Zhou, ZHOU Hui-Juan et al 2012 Chin. Phys. Lett. 29 044213 |
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Abstract We investigate modulation instability (MI) in the presence of a monochromatic spectrum and on the background of a broadband amplified spontaneous emission spectrum induced by an erbium-doped fiber amplifier, respectively. For the former case, the MI threshold is ∼110 mW, which agrees well with the theoretical value. However, for the latter case, the threshold is as high as ∼170 mW, which indicates that the MI threshold depends on the shape of the input spectrum and that the broadband spectrum has a higher threshold than the monochromatic one.
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Received: 24 November 2011
Published: 04 April 2012
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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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42.81.-i
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(Fiber optics)
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