摘要
Integrated microwave photonic filters(IMPFs)are capable of offering unparalleled performances in terms of superb spectral fineness,broadband,and more importantly,the reconfigurability,which encounter the trend of the next-generation wireless communication.However,to achieve high reconfigurability,previous works should adopt complicated system structures and modulation formats,which put great pressure on power consumption and controlment,and,therefore,impede the massive deployment of IMPF.Here,we propose a streamlined architecture for a wideband and highly reconfigurable IMPF on the silicon photonics platform.For various practical filter responses,to avoid complex auxiliary devices and bias drift problems,a phase-modulated flexible sideband cancellation method is employed based on the intensity-consistent single-stage-adjustable cascadedmicroring(ICSSA-CM).The IMPF exhibits an operation band extending to millimeter-wave(≥30 GHz),and other extraordinary performances including high spectral resolution of 220 MHz and large rejection ratio of 60 d B are obtained.Moreover,Gb/s-level RF wireless communications are demonstrated for the first time towards real-world scenarios.The proposed IMPF provides broadband flexible spectrum control capabilities,showing great potential in the next-generation wireless communication.
基金
National Key Research and Development Program of China(2021YFB2800400,2022YFB2803700)
National Natural Science Foundation of China(62235002,12204021,62001010)
Beijing Municipal Science and Technology Commission(Z221100006722003)
Beijing Municipal Natural Science Foundation(Z210004)
Nantong Science and Technology Bureau(JC2021002)。