《Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter》 2013年286卷1期
摘要
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We propose and experimentally demonstrate a microwave photonic filter based on an electro-optic phase modulator (EOPM) and a Fabry-Perot semiconductor optical amplifier (FP-SOA). A microwave photonic filter with a single passband ...
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We propose and experimentally demonstrate a microwave photonic filter based on an electro-optic phase modulator (EOPM) and a Fabry-Perot semiconductor optical amplifier (FP-SOA). A microwave photonic filter with a single passband between 0 and 40 GHz is obtained. The center frequency, the -3 dB bandwidth and the -30 dB bandwidth of the microwave photonic filter are 18.3, 3.184 and 4.005 GHz respectively. Correspondingly, the shape factor, which is defined as the ratio of the -30 dB bandwidth to the -3 dB bandwidth, is 1.26, and the Q factor, which is defined as the ratio of center frequency to the -3 dB bandwidth of the microwave passband, is 5.75. The achieved microwave passband can be fitted by an 8th order super-Gaussian shape.
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