Optical solitons in a dispersion-flattened fiber with linear and quadratic intensity-dependent refractive-index changes

Chi Feng Chen, Sien Chi

研究成果: 雜誌貢獻期刊論文同行評審

4 引文 斯高帕斯(Scopus)

摘要

Optical-soliton propagation in a dispersion-flattened fiber is investigated, of which third-order dispersion is nil and fourth-order dispersion exists with linear and quadratic intensity-dependent refractive-index changes. For four possible sign combinations of the second-order dispersion and the Kerr-effect terms, we found that there are two types of bright-soliton solutions and two types of dark-soliton solutions. The magnitude of the fourth-order dispersion parameter is related to the quadratic intensity-dependent nonlinearity coefficient, and their signs are opposite. The peak power and the period of the soliton are determined by the magnitude of the fourth-order dispersion parameter. We numerically show that the bright-soliton solution in anomalous second-order dispersion and the positive Kerr coefficient regime is stable and becomes quasi stable when the Raman effect is considered.

原文???core.languages.en_GB???
頁(從 - 到)2210-2215
頁數6
期刊Journal of the Optical Society of America B: Optical Physics
15
發行號8
DOIs
出版狀態已出版 - 8月 1998

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