Chinese Optics Letters, 2011, 9 (8): 080601, Published Online: Jun. 3, 2011
High channel-count comb f ilter based on multi-concatenated sampled chirped fiber Bragg gratings 
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光纤光学器件 光纤布拉格光栅 干涉型滤波器 060.2340 Fiber optics components 060.3735 Fiber Bragg gratings 350.2460 Filters, interference
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.
Hongwei Yuan, Jun Zhou, Weitao Ma, Yongtang Sun, Tiefeng Xu. High channel-count comb f ilter based on multi-concatenated sampled chirped fiber Bragg gratings[J]. Chinese Optics Letters, 2011, 9(8): 080601.
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