title: Tunable all-optical single-bandpass photonic microwave filter based on spectrally sliced broad optical source and phase modulation.
abstract: A tunable all-optical single-bandpass photonic microwave filter (PMF) based on spectrally sliced broadband optical source and phase modulation is proposed and experimentally demonstrated. A broadband optical source and a Mach-Zehnder interferometer (MZI) are used to generate continuous optical spectral samples, which are employed to form a finite impulse response filter with a single-bandpass response with the help of a single-mode fiber. A phase modulator is then adopted to eliminate the baseband components in the filtering response. The center frequency of the PMF can be tuned by changing the free spectral range of the MZI. An experiment is performed, and the results demonstrate that the proposed PMF has a single-bandpass without baseband components and a tuning range of 5-15 GHz.
authors: Center for Information Photonics & Communications, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031, China. chenming@my.swjtu.edu.cn
authors: Ming
authors: M
authors: Chen
authors: Wei
authors: W
authors: Pan
authors: Xihua
authors: X
authors: Zou
authors: Bin
authors: B
authors: Luo
authors: Lianshan
authors: L
authors: Yan
authors: Xinkai
authors: X
authors: Liu