Optical generation of UWB pulses utilizing Fano resonance modulation

Zhe Xu; Yanyang Zhou; Shuhuang Chen; Liangjun Lu; Gangqiang Zhou; Jianping Chen; Linjie Zhou

doi:10.1007/s12200-020-1010-6

Optical generation of UWB pulses utilizing Fano resonance modulation

Front Optoelectron. 2021 Dec;14(4):426-437. doi: 10.1007/s12200-020-1010-6. Epub 2020 Aug 10.

Authors

Zhe Xu¹, Yanyang Zhou¹, Shuhuang Chen¹, Liangjun Lu¹, Gangqiang Zhou¹, Jianping Chen¹, Linjie Zhou²

Affiliations

¹ State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
² State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China. ljzhou@sjtu.edu.cn.

Abstract

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.

Keywords: Fano resonance; integrated silicon modulator; intensity modulation; ultra-wideband (UWB) generation.