We present a 300 GHz photonic filter based on a soliton microcomb,addressing the increasing demand for high-frequency,low-phase-noise signals in THz-band wireless communications.Utilizing a uni-traveling-carrier photo...We present a 300 GHz photonic filter based on a soliton microcomb,addressing the increasing demand for high-frequency,low-phase-noise signals in THz-band wireless communications.Utilizing a uni-traveling-carrier photodiode(UTC-PD),our configuration enables the generation of 300 GHz waves through beat signals from adjacent longitudinal modes of the microcomb.By combining the UTC-PD with a photonic filter approach,we demonstrate that RF photonic filters with high suppression ratios are achieved in the 300 GHz band.Additionally,by mitigating the effects of higher-order dispersion,we achieve a stopband rejection exceeding 30 d B.These results underscore the potential of our photonic filter for advanced THz applications and provide a promising pathway for low-noise,high-bandwidth wireless communication systems.展开更多
基金Ministry of Internal Affairs and Communications,SCOPE(JP2250030)JST,CRONOS(JPMJCS24N7)Japan Society for the Promotion of Science(JP24K17624)。
文摘We present a 300 GHz photonic filter based on a soliton microcomb,addressing the increasing demand for high-frequency,low-phase-noise signals in THz-band wireless communications.Utilizing a uni-traveling-carrier photodiode(UTC-PD),our configuration enables the generation of 300 GHz waves through beat signals from adjacent longitudinal modes of the microcomb.By combining the UTC-PD with a photonic filter approach,we demonstrate that RF photonic filters with high suppression ratios are achieved in the 300 GHz band.Additionally,by mitigating the effects of higher-order dispersion,we achieve a stopband rejection exceeding 30 d B.These results underscore the potential of our photonic filter for advanced THz applications and provide a promising pathway for low-noise,high-bandwidth wireless communication systems.
