Author:
Xu Wendao,Zerbib Maxime,Iyer Arjun,Beugnot Jean-Charles,Renninger William H.
Abstract
A continuously tunable microwave-photonic filter with ultranarrow bandwidth is enabled by forward inter-modal Brillouin interactions with a fundamental acoustic mode of a fiber taper. Sub-MHz bandwidth is demonstrated over >10 GHz, limited by current components.