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High channel-count comb filter based on multi-concatenated sampled chirped fiber Bragg gratings

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【Author】 Hongwei Yuan,Jun Zhou,Weitao Ma,Yongtang Sun,and Tiefeng Xu 1Department of Optical Engineering,School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China 2Institute of Photonics,Faculty of Science,Ningbo University,Ningbo 315211,China

【机构】 Department of Optical Engineering,School of Mechanical Engineering,Jiangsu University； Institute of Photonics,Faculty of Science,Ningbo University；

【摘要】 A high channel-count comb filter based on multi-concatenated sampled chirped fiber Bragg gratings(MC-SCFBGs) is proposed and optimally designed by using several chirped gratings with different fundamental grating periods,instead of non-grating sections of SCFBGs.The numerical simulations of the reflection spectra show that the channel spacing and the channel bandwidth in MC-SCFBGs are smaller than those in multi-concatenated chirped fiber Bragg gratings(MC-CFBGs) and that the spectral bandwidth of MC-SCFBGs can be greatly broadened by increasing the cascade number of the grating sections in each sampling period.更多还原

【Abstract】 A high channel-count comb filter based on multi-concatenated sampled chirped fiber Bragg gratings(MC-SCFBGs) is proposed and optimally designed by using several chirped gratings with different fundamental grating periods,instead of non-grating sections of SCFBGs.The numerical simulations of the reflection spectra show that the channel spacing and the channel bandwidth in MC-SCFBGs are smaller than those in multi-concatenated chirped fiber Bragg gratings(MC-CFBGs) and that the spectral bandwidth of MC-SCFBGs can be greatly broadened by increasing the cascade number of the grating sections in each sampling period.更多还原

【关键词】 Bragg； grating； sampled； bandwidth； spacing； sections； cascade； Talbot； instead； length；

【基金】 supported by the National Natural Science Foundation of China (Nos. 60977048 and 60978058);the Natural Science Foundation of Ningbo(No. 2008A610001);the International Collaboration Project of Ningbo (No. 2010D10018);the K. C.Wong Magna Fund in Ningbo University,China

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2011年08期

【分类号】TN253
【被引频次】2
【下载频次】42

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