Abstract: Provided are systems and methods for photonic-electronic neural network computation. In an embodiment, arrays of input data are processed in an optical domain and applied through a plurality of photonic-electronic neuron layers, such as in a neural network. The data may be passed through one or more convolution cells, training layers, and classification layers to generate output information. In embodiments, various types of input data, e.g., audio, video, speech, analog, digital, etc., may be directly processed in the optical domain and applied to any numbers of layers and neurons in various neural network configurations. Such systems and methods may also be integrated with one or more photonic-electronic systems, including but not limited to 3D imagers, optical phased arrays, photonic assisted microwave imagers, high data-rate photonic links, and photonic neural networks.

Abstract: Provided are systems and methods of using of optical delay lines in RF imagers, e.g., Ultra-wideband (UWB) imagers. In an embodiment, a modulator can be configured to convert radio-frequency signals to optical signal. First and second optical delay lines delay respective first and second optical signals converted by the modulator, and a photodetector can convert the delayed optical signals to at least one electrical signal corresponding to at least one pixel of a radio frequency image. The disclosed systems and methods can also further form a radio-frequency image based on output from the photodetector. In still further embodiments, the photodetector can receive modulated optical signals from an array of optical delays. Also provided are related methods of using the disclosed systems and devices.

Abstract: Provided are systems and methods of using of optical delay lines in RF imagers, e.g., Ultra-wideband (UWB) imagers. In an embodiment, a modulator can be configured to convert radio-frequency signals to optical signal. First and second optical delay lines delay respective first and second optical signals converted by the modulator, and a photodetector can convert the delayed optical signals to at least one electrical signal corresponding to at least one pixel of a radio frequency image. The disclosed systems and methods can also further form a radio-frequency image based on output from the photodetector. In still further embodiments, the photodetector can receive modulated optical signals from an array of optical delays. Also provided are related methods of using the disclosed systems and devices.