Chinese Optics Letters, 2019, 17 (6): 060603, Published Online: Jun. 5, 2019
Microwave photonic filter design and optimization based on stimulated Brillouin scattering using a directly modulated pump Download: 585次
060.5625 Radio frequency photonics 290.5900 Scattering, stimulated Brillouin 060.2330 Fiber optics communications 060.4080 Modulation
Abstract
We propose a general guideline on the design of a stimulated Brillouin scattering (SBS)-based microwave photonic filter (MPF) using a directly modulated pump. Filter gain profiles and passband ripples with waveform repetition periods of the driving current ranging from 2 to 100 ns are measured after the transmission of different fiber lengths. The results show that the filter performance has nothing to do with the fiber length, and the digital-to-analog converter bandwidth requirement for the driving current is no more than 500 MHz. Therefore, the low cost, flexible reconfiguration, and miniaturization characteristics make an SBS filter using a directly modulated pump a promising choice as an MPF.
Kai Hu, Lilin Yi, Wei Wei, Weisheng Hu. Microwave photonic filter design and optimization based on stimulated Brillouin scattering using a directly modulated pump[J]. Chinese Optics Letters, 2019, 17(6): 060603.