Science Daily April 11, 2023
To achieve high reconfigurability in integrated microwave photonic filters (IMPFs) previous works adopt complicated system structures and modulation formats, which put great pressure on power consumption and controlment, and, therefore, impeded the massive deployment of IMPF. Researchers in China proposed a streamlined architecture for a wideband and highly reconfigurable IMPF on the silicon photonics platform. For various practical filter responses, to avoid complex auxiliary devices and bias drift problems, a phase-modulated flexible sideband cancellation method was employed based on the intensity-consistent single-stage-adjustable cascaded-microring. The IMPF exhibited an operation band extending to millimeter-wave and other extraordinary performances including high spectral resolution and large rejection ratio. They demonstrated Gb/s-level RF wireless communications. According to the researchers their proposal provides broadband flexible spectrum control capabilities, showing great potential in the next-generation wireless communication… read more. Open Access TECHNICAL ARTICLE
Experimental demonstration of wireless communication for the bandpass filter… Credit: Photonics Research Vol. 11, Issue 5, pp. 682-694 (2023)