Abstract: An electro-optical single-sideband modulator comprising: an electro-optical substrate; a bimodal optical waveguide structure formed in the substrate to support different optical modes having associated optical frequencies and optical propagation constants and comprising an optical input to receive an input optical carrier signal having an optical frequency, and a pair of optical outputs to output corresponding SSB modulated optical signals, each having an optical frequency spectrum with a single side lobe; and an electrode structure formed on the substrate to receive an input electrical modulating signal having an associated electrical frequency and electrical propagation constant, and to responsively apply an electrical field to the bimodal optical waveguide structure.

Abstract: A photonic-assisted digital radar system comprising an active electronically-scanned antenna; a transmitting section comprising a waveform generator to generate a modulating signal; and a modulator to receive a transmission carrier and the modulating signal and to modulate the transmission carrier by means of the modulating signal; and a receiving section comprising a photonic-assisted analog-to-digital converter to convert electric analog signals into electric digital signals; and a digital signal processor to receive and process the electric digital signals. The photonic-assisted analog-to-digital converter comprises a mode-locked laser to generate an optical clock signal; and an electronic analog-to-digital converter; wherein the electronic analog-to-digital converter, the waveform generator, the modulator and the digital signal processor are configured to operate based on electric clock signals generated based on the optical clock signal.

Abstract: A photonic-assisted digital radar system comprising an active electronically-scanned antenna; a transmitting section comprising a waveform generator to generate a modulating signal; and a modulator to receive a transmission carrier and the modulating signal and to modulate the transmission carrier by means of the modulating signal; and a receiving section comprising a photonic-assisted analog-to-digital converter to convert electric analog signals into electric digital signals; and a digital signal processor to receive and process the electric digital signals. The photonic-assisted analog-to-digital converter comprises a mode-locked laser to generate an optical clock signal; and an electronic analog-to-digital converter; wherein the electronic analog-to-digital converter, the waveform generator, the modulator and the digital signal processor are configured to operate based on electric clock signals generated based on the optical clock signal.