摘要
In this paper,we reported an integrated method to generate ultra-wideband(UWB)pulses of different orders based on a reconfigurable silicon micro-ring resonator-coupled Mach–Zehnder interferometer.Under proper operating conditions,the device can produce Fano resonances with a peak-to-valley extinction ratio of above 20 dB.UWB monocycle and doublet signals with picosecond pulse widths are produced when the microring resonator is modulated by square and Gaussian electrical pulses,respectively.With our Fano resonance modulator on silicon photonics,it is promising to foresee versatile on-chip microwave signal generation.
基金
the National Key Research and Development Program(Nos.2019YFB2203203 and 2018YFB2201702)
the National Natural Science Foundation of China(NSFC)(Grant Nos.61705129 and 61535006)
the Shanghai Municipal Science and Technology Major Project(No.2017SHZDZX03)
the Open Project Program of Wuhan National Laboratory for Optoelectronics(No.2019WNLOKF004)。
