GUO Sen,ZHANG Juan,LI Xue Key.Optical notch filter design based on digital signal processing[J].Optoelectronics Letters,2011,7(3):182-185 Optical notch filter design based on digital signal processing Author Name Affiliation GUO Sen  Key Laboratory of Specialty Fiber Optics and Optical Access Networks,School of Communication and Information Engineering,Shanghai University；  ZHANG Juan  Key Laboratory of Specialty Fiber Optics and Optical Access Networks,School of Communication and Information Engineering,Shanghai University；  LI Xue Key  Key Laboratory of Specialty Fiber Optics and Optical Access Networks,School of Communication and Information Engineering,Shanghai University；  Abstract:       Based on digital signal processing theory,a novel method of designing optical notch filter is proposed for Mach-Zehnder interferometer with cascaded optical fiber rings coupled structure.The method is simple and effective,and it can be used to implement the designing of the optical notch filter which has arbitrary number of notch points in one free spectrum range(FSR).A design example of notch filter based on cascaded single-fiber-rings is given.On this basis,an improved cascaded double-fiber-ri... Hits: 3768 Download times: 215 View Full Text    Download reader