Optimum Design of Asymmetric Birefringent Interleaver Based on FIR Digital Filter Design Technique
FIR is adopted to design the asymmetricalbirefringent interleaver.By choosing appropriate value ofstructure parameters such as crystal deflection angle,thicknessand angle of analyser,we have managed to design anasymmetrical interleaver,the ratio of output port (widebandwidth) to another output port (narrow bandwidth) at 3dBpassband (bandwidth ratio) is 2.06.The simulation results aregiven and the influence of each crystals azimuth angle,thickness,and analysers azimuth angle on the wholeinterleaver are analysed.The analysis on designing method andsimulation results show that in the asymetrical birefringentinterleaver,the thickness of crystal affects bandwidth ofpassband and channel isolation of output spectrum more thancrystals and analysers azimuth angles.
DWDM interleaver FIR asymmetrical
Xiaowei Yang Juan Zhang
School of Communication and Information Engineering,The Key Lab of Specialty Fiber Optics and Optica School of Communication and Information Engineering,The Key Lab of Specialty Fiber Optics and Optica
国际会议
2008 China-Japan Joint Microwave Conference(2008年中日微波会议)
上海
英文
595-598
2008-09-10（万方平台首次上网日期，不代表论文的发表时间）