Reconfigurable and Tunable Multi-output Optoelectronic Oscillator Based on Stimulated Brillouin Scattering Effect

Abstract

In this paper, a reconfigurable and tunable optoelectronic oscillator (OEO) based on the stimulated Brillouin scattering (SBS) effect is proposed and theoretically demonstrated. Based on the same structure, the OEO can generate one tunable microwave signal, two output microwave signals, or multi-frequency tunable signals. In order to obtain the carrier-suppressed double sideband (CS-DSB) signal, the single drive MZM is considered at the minimum transmission point (MITP). After passing through the tunable optical bandpass filter (TBPF), we can obtain the carrier-suppressed single sideband (SC-SSB) signal. By using the controllable SC-SSB signals, the corresponding signals are constructed. In the proposed structure, multi-pump lights are generated using carrier suppression single-sideband modulation and an optical tunable filter. As a consequence, a reconfigurable and tunable OEO can be achieved. By using one laser and an arbitrary waveform generator (AWG), multiple-frequency tunable microwave signals can be generated. The design concept and simulated results show that the proposed OEO is flexible, which can be used to offer the possibility to process multi-type microwave signals simultaneously.