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《Acta Electronica Sinica》 2004-S1
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Tunable Wavelength Selective Optical Switch Based on Fabry-Perot Cavity Structure

LI Xin-wan,CHEN Jian-ping,YE Ai-lun,WU Gui-ling,LU Jia-lin (The State Key Laboratory on Fiber Optical Local Communication Networks and Advanced Optical Communication System,Dept.of Electronic Engineering,Shanghai Jiaotong University,Shanghai 200030,China)  
A kind of tunable wavelength selective optical switch was proposed for the first time.It is based on Fabry-Perot cavity.The optical switch has two-input and two-output fiber ports.Each fiber carries N wavelengths,one or more of which can be selected.The maximum insertion loss is 3 dB and the tunable wavelength range is over 10 nanometers.The tuning mechanism is a sandwiched multi-layered piezoelectric ceramic.The tunable span can reach 3.3 nm under 5 V DC voltages.The switching time is about 1 ms and the on/off ratio is over 30dB.The optical spectrum of the switch is also studied.At last,some applications of such optical switch are discussed.
【Fund】: 国家 8 63计划 (No.2 0 0 1AA1 2 2 0 74 2 0 0 2AA1 2 2 0 2 2 ) ;; 国家自然科学基金 (No .90 2 0 4 0 0 0 6 60 3770 1 3) ;; 教育部和上海市科委 (No.0 2 2 2 61 0 0 1 No.0 361 0 50 0 9)
【CateGory Index】: TN929.1
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