28 January 2005 Modulation instability in distributed fiber amplifier with gain dispersion and stimulated Raman scattering
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Abstract
We investigate modulation instability (MI) in the distributed fiber amplifier based on a modified Ginzburg-Landau equation. The role of gain dispersion and stimulated Raman scattering (SRS) in MI is identified. It is found that, due to SRS, the MI gain spectrum consists of two parts: the conventional MI gain spectrum and the Raman gain spectrum. Gain dispersion exerts little influence on the conventional MI spectrum, yet it deforms the Raman gain spectrum seriously, mainly by reducing its growth rate. Moreover, as the signal power increases, the bandwidths of the conventional MI and the Raman gain spectrum are simultaneously extended, with the latter spectrum being extended more quickly.
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Hua Zhang, Hua Zhang, Shuangchun Wen, Shuangchun Wen, Wangyang Cai, Wangyang Cai, Ying Li, Ying Li, Xiquan Fu, Xiquan Fu, } "Modulation instability in distributed fiber amplifier with gain dispersion and stimulated Raman scattering", Proc. SPIE 5646, Nonlinear Optical Phenomena and Applications, (28 January 2005); doi: 10.1117/12.571586; https://doi.org/10.1117/12.571586
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