Patent ID: 9689968
Date: 2017-06-27
CPC Classifications: G01S,H01Q

Claim:
1. A wholly optically controlled phased array transmitter with integrated optoelectronic oscillators and optical time delay networks based on multi-wavelength optical sources and optical time delay networks, comprising: a multi-wavelength optical source, a first wavelength division multiplexer, a first optical splitter, a first electro-optic modulator, a second optical splitter, a first optical amplifier, a first optical time delay network, a photodetector, an electric amplifier, a DC-block, a second electro-optic modulator, a second optical amplifier, a second optical time delay network, an optical combiner, a second wavelength division multiplexer, an optical fibers, a photodetector array, a T/R component array, a microwave antenna array, a 1×2 optical switch, a 2×2 optical switch, a circulator, a third wavelength division multiplexer, a bundle of optical fibers with various precise lengths, and a Faraday rotation mirror, wherein the first wavelength division multiplexer, the first optical splitter, the first electro-optic modulator, the second optical splitter, the second electro-optic modulator, the second optical amplifier, the second optical time delay network, the optical combiner, the second wavelength division multiplexer, the optical fiber, the photodetector array, the T/R component array, and the microwave antenna array are successively arranged along the direction of laser output of the multi-wavelength optical source; a second output port of the second optical splitter is connected with an RF input port of the first electro-optic modulator via the first optical amplifier, the first optical time delay network, the photodetector, the electric amplifier, and the DC-block in order, and form a close loop as an optoelectronic oscillator to generate a microwave signal; a second output port of the first optical splitter is connected with a second input port of the optical combiner; and a second input port of the second electro-optic modulator is a microwave input port.