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A new multiple-taps and flat microwave photonic filter,which is composed of fiber Bragg grating,M-Z modulator and erbium-doped fiber,is put forward.The flat band-pass or flat band-stop response can be realized by adjusting the coupler’s factor and the reflectivity of the fiber Bragg grating or the gain of the erbium-doped fiber.The free spectral range of the filter can be tuned by controlling the length of the erbium-doped fiber.The potential and feasibility of the proposed filtering structures have been demonstrated by simulation.
A new multiple-taps and flat microwave photonic filter, which is composed of fiber Bragg grating, MZ modulator and erbium-doped fiber, is put forward. The flat band-pass or flat band-stop response can be realized by adjusting the coupler’s factor and the reflectivity of the fiber Bragg grating or the gain of the erbium-doped fiber. The free spectral range of the filter can be tuned by controlling the length of the erbium-doped fiber. The potential and feasibility of the proposed filtering structures have been demonstrated by simulation.