Design for photonic crystal fibers with high nonlinearity and flattened dispersion for self-frequency shift of Raman soliton

doi:10.1016/S1005-8885(14)60347-2

中国邮电高校学报(英文) ›› 2014, Vol. 21 ›› Issue (6): 72-77.doi: 10.1016/S1005-8885(14)60347-2

Design for photonic crystal fibers with high nonlinearity and flattened dispersion for self-frequency shift of Raman soliton

胡晓明¹,苑金辉¹,余重秀²,魏帅¹

1. 北京邮电大学
2. 北京邮电大学光通信与光波技术教育部重点实验室

收稿日期:2014-04-04 修回日期:2014-09-22 出版日期:2014-12-31 发布日期:2014-12-31
通讯作者: 胡晓明 E-mail:huxiaoming@sx.chinamobile.com
基金资助:
国家重点基础研究发展项目;国家高技术研究发展项目;中国教育部重点资助;教育部新世纪优秀人才支持项目;北京市科技新星项目;高等教育研究基金博士课程;中央高校基本科研业务费

Design for photonic crystal fibers with high nonlinearity and flattened dispersion for self-frequency shift of Raman soliton

Received:2014-04-04 Revised:2014-09-22 Online:2014-12-31 Published:2014-12-31
Contact: Xiao-Ming HU E-mail:huxiaoming@sx.chinamobile.com
Supported by:
;the Fundamental Research Funds for the Central Universities

摘要/Abstract

摘要： 　A new concept of photonic crystal fiber (PCF) with high nonlinearity and flattened dispersion was designed. The PCF structure is indeed a hexagon lattice. The bigger air holes in the outer rings are used to confine the light field into the core region for enhancing the nonlinearity. The flattened dispersion can be achieved by adjusting the diameters of six smaller air holes in the first ring, and six micro air holes are inserted between smaller air holes for higher nonlinearity and the better flattened dispersion. By optimizing the size of the smaller and micro holes, the PCF can reach to high nonlinearity of 23.3 and the low dispersion of 51.32 ps/(nm·km) with the fluctuation range of 0.98 ps/(nm·km), which is within the wavelength range of 1 400 nm to 1 900 nm. The designed PCF can be used in important applications in realizing the Raman soliton self-frequency shift (RSSFS).

关键词: PCF, nonlinearity, dispersion, RSSFS

Abstract: 　A new concept of photonic crystal fiber (PCF) with high nonlinearity and flattened dispersion was designed. The PCF structure is indeed a hexagon lattice. The bigger air holes in the outer rings are used to confine the light field into the core region for enhancing the nonlinearity. The flattened dispersion can be achieved by adjusting the diameters of six smaller air holes in the first ring, and six micro air holes are inserted between smaller air holes for higher nonlinearity and the better flattened dispersion. By optimizing the size of the smaller and micro holes, the PCF can reach to high nonlinearity of 23.3 and the low dispersion of 51.32 ps/(nm·km) with the fluctuation range of 0.98 ps/(nm·km), which is within the wavelength range of 1 400 nm to 1 900 nm. The designed PCF can be used in important applications in realizing the Raman soliton self-frequency shift (RSSFS).

Key words: PCF, nonlinearity, dispersion, RSSFS

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Design for photonic crystal fibers with high nonlinearity and flattened dispersion for self-frequency shift of Raman soliton

Design for photonic crystal fibers with high nonlinearity and flattened dispersion for self-frequency shift of Raman soliton

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