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| 1 | Observation of parity-time symmetry in microwave photonics显示文摘Symmetry plays a crucial role in explorations of the laws of nature.Parity-time(PT)symmetry phenomena can lead to entirely real spectra in non-Hermitian systems,which attracts considerable attention in the fields of optics and electronics because these phenomena provide a new tool for the manipulation of oscillation modes and nonreciprocal signal transmission.A potential new field of application is microwave photonics,an interdisciplinary field in which the interaction between microwaves and optical signals is exploited.In this article,we report the experimental use of PT symmetry in an optoelectronic oscillator(OEO),a key microwave photonics system that can generate singlefrequency sinusoidal signals with high spectral purity.PT symmetry is theoretically analyzed and experimentally observed in an OEO with two mutually coupled active oscillation cavities via a precise manipulation of the interplay between gain and loss in the two oscillation cavities.Stable single-frequency microwave oscillation is achieved without using any optical/electrical filters for oscillation mode selection,which is an indispensable requirement in traditional OEOs.This observation opens new avenues for signal generation and processing based on the PT symmetry principle in microwave photonics. | Yanzhong Liu Tengfei Hao Wei Li Jose Capmany Ninghua Zhu Ming Li | 2018 | Light(Science & Applications)2018，7，1： | 5 |
| 2 | Microwave photonics显示文摘Microwave photonics,an interdisciplinary field that combines microwave engineering and photonic technology for the generation,transmission,processing,and control of microwave signals,to take advantage of the broad bandwidth,high frequency,and low loss offered by modern photonics,has been intensively researched for the last few decades,and numerous solutions have been proposed and demonstrated.In this article,an overview about microwave photonics is provided which covers the basic concepts of microwave photonics,photonic-assisted microwave signal generation,photonic-assisted microwave signal processing,and true time delay beamforming.The implementation of microwave photonic systems based on photonic integrated circuits is also reviewed,including the design,fabrication,and material platforms,application-specific photonic integrated circuits for microwave photonics,and programmable integrated microwave photonics.The challenges and future applications of microwave photonics are also discussed. | Jianping YAO Jose CAPMANY | 2022 | Science China(Information Sciences)2022，65，12： | 3 |
| 3 | Microwave photonics combines two worlds 显示文摘 | Capmany Jose Dalma Novak | 2007 | Nature Photonics2007，1，3： | 1 |
| 4 | A tuto- rial on microwave photonic filters 显示文摘 | Capmany Jose Ortega Beatriz Pastor Daniel | 2006 | Lightwave Technology2006，24，1： | 1 |
| 5 | Modeling of a time-spreadlng OCDMA system显示文摘 | WALDIMAR Amaya DANIEL Pastor JOSE Capmany | 2008 | Journal of Lightwave Technology2008，26，7： | 1 |
| 6 | On the cascaded of incoherent discrete- time microwave photonic filter 显示文摘 | Capmany Jose | 2006 | IEEE J Lightwave Technol2006，24，7： | 1 |
| 7 | Micro-wave photonic signal processing 显示文摘 | Jose Capmany Jose Mora Ivana Gasulla | 2013 | Journal of Light-wave Technology2013，31，： | 1 |
| 8 | Microwave Photonics Com- bines Two Worlds显示文摘 | Jose Capmany Dalma Novak | 2007 | Nature Photonics2007，1，： | 1 |
| 9 | Generalized bloch wave analysis for fiber and waveguide gratings 显示文摘 | Eva Petal Jose Capmany | 1997 | Light wave Technol1997，15，8： | 1 |
| 10 | Microwave photonics combines two worlds显示文摘 | Jose Capmany Dalma Novakr | 2007 | NaturePhotonics2007，1，6： | 1 |
| 11 | Modeling and design of arrayed waveguide gratings显示文摘 | Pascual MUNOZ Daniel PASTOR Jose CAPMANY | 2002 | Journal of Lightwave Technology2002，20，4： | 1 |
| 12 | Single-shot incoherent optical processing of microwave signals: opening the path to low cost high performance analog photonics显示文摘Incoherent optical processing of microwave signals,where low-coherence broadband light sources are employed instead of costly mode locked lasers,has attracted great interest thanks to its wide applications in microwave photonics filtering[1–3],arbitrary generation[4–6]and analog to digital conversion[7]。 | Jose Capmany | 2017 | Science Bulletin2017，62，9： | 0 |
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