Microwave Pulse Signal Generation Device Based on Optically Controlled Nonlinear Loop Mirror

Abstract

The invention discloses a microwave pulse signal generating device based on a light-operated nonlinear annular mirror. The device comprises a mode locking pulse laser, a first intensity modulator, a first code pattern generator, a first optical coupler, a first polarization controller, a second optical coupler, a second polarization controller, a variable optical attenuator, a light amplifier, a narrow linewidth laser, a semiconductor optical amplifier, a third polarization controller, a polarization maintaining optical fiber, a fourth polarization controller, an optical band pass filter, a dispersion element, a photoelectric detector, a sampling oscilloscope, a signal source analyzer, a second code pattern generator and a second intensity modulator. The phase and the duty ratio of microwave pulse signals produced by the microwave pulse signal generating device based on the light-operated nonlinear annular mirror can be tuned, the disadvantages of a traditional electronics method in the aspects of the bandwidth, the weight, the size, the electromagnetic interference and the like are overcome, and the purpose of producing high-frequency waveform microwave pulse signals with any waveform through the electronic technology is achieved.

Description

technical field [0001] The invention belongs to the technical field of microwave photonics, and is a technology for generating arbitrary waveforms by using light control technology, in particular a device for generating microwave pulse signals with tunable phase and duty cycle based on light control nonlinear loop mirrors. Background technique [0002] In recent years, microwave signals based on photon technology to generate arbitrary waveforms have attracted widespread attention, including modern radars and antennas, radio frequency communication systems, electronic test systems, electronic countermeasure systems, and all-optical signal processing and manipulation. Microwave technology The mutual integration with photonic technology has become an inevitable trend of scientific and technological progress. The use of photonic technology to generate microwave signals overcomes the limitations of traditional technology using electronic technology to generate microwave signals. ...

AI Technical Summary

Problems solved by technology

Frequency-to-time mapping to generate microwave signals of arbitrary waveforms has accumulated extensive research foundations. However, up to now, there is no technology based on all-optical technology to generate microwave pulse signals with tunable phase and duty cycle.

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