The mysterious Persian-language transmission began about 12 hours after the start of the US-Israeli bombing campaign against Iran. It was jammed five days later. Is it a coded message for US agents in ...

A high-level schematic of the photonic integrated chip, developed by the Gaeta lab, for all-optical optical frequency division, or OFD—a method of converting a high-frequency signal to a lower ...

How a single silicon chip was designed to be microwave and optical signal-processing engine. The various roles for which this engine can be reconfigured. The performance considerations that were ...

The Photonics Research Group and IDlab, two imec research groups at Ghent University, and imec, a world-leading research and innovation hub in nanoelectronics and digital technologies, have published ...

Frequency multipliers are essential to generate a high frequency, low phase-noise signal from a low frequency, high performance oscillator. Figure 1 shows a phase noise comparison between a signal ...