A single passband microwave photonic filter with flat-top and steep transition edges

作者：Yu Yuan; Dong Jianji; Luo Bowen; Jiang Fan; Zhang Xinliang^*

来源：Optics Communications, 2013, 286: 95-98.

DOI：10.1016/j.optcom.2012.08.099

• Microwave photonic filter
• Fabry-Perot semiconductor optical amplifier (FP-SOA)
• Phase modulation

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.

• 出版日期2013-1-1
• 单位华中科技大学