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A microwave photonic radar system with optical generation and de-chirping processing of broadband linear frequency modulated continuous-wave signal is proposed for high-resolution and real-time inverse synthetic aperture radar (ISAR) imaging. A K-band microwave photonic radar prototype is established and the ISAR imaging feasibility is experimentally investigated. The imaging results verify that the...
RF front-end based on microwave photonics is presented and demonstrated. A proof-of-concept RF front-end covering S-Ka bands is successfully realized. Image-reject frequency down-conversion and channelized receiving is realized. Reconfigurable photonic frequency up-conversion for RF signals emitting is also demonstrated.
A reconfigurable photonic microwave mixer is proposed using a 90° optical hybrid. To perform the reconfigurable mixing, an optical carrier is split into two branches. One portion is intensity-modulated by an RF or intermediate frequency signal, and the other is driven by a local oscillator (LO). Each generates an optical sideband. The two sidebands from the two branches are introduced to the signal...
Optical ring resonators have attracted great interests in integrated photonics, since they can be employed for a variety of applications, such as filters, multi/demultiplexers, true time delay lines, optical routers, optical signal processers, and so on. Here, we propose our recent progress on reflective-type ring resonators in both theoretical analysis and experimental results, which can be used...
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