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Observation of parity-time symmetry in microwave photonics [PDF]
Light Sci Appl, 2018 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 ...
Yanzhong Liu +5 more
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Optical Fiber Displacement Sensor Based on Microwave Photonics Interferometry [PDF]
Sensors (Basel), 2018 An optical fiber displacement sensor based on the microwave photonics interferometric (MWPI) method is proposed and experimented, which provides an ideal solution for large range displacement measurement with high resolution.
Hao Dong +4 more
semanticscholar +2 more sources
Dispersive Fourier Transformation for Versatile Microwave Photonics Applications [PDF]
, 2014 : Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform with its intensity profile mirroring the spectrum using chromatic dispersion.
Chao Wang
openalex +6 more sources
Quantum Microwave Photonics [PDF]
Journal of Lightwave Technology, 2021 By combing photonics and radiofrequency (RF) engineering, microwave photonics has been widely studied in the past few decades for the generation, processing, control and distribution of microwave and RF signals using photonic techniques. In parallel with
Tengfei Hao +7 more
semanticscholar +1 more source
Crystals, 2021 In this paper we investigate the temperature dependent behavior of a liquid crystal (LC) loaded tunable dielectric image guide (DIG) phase shifter at millimeter-wave frequencies from 80 GHz to 110 GHz for future high data rate communications.
Henning Tesmer +5 more
doaj +1 more source
Microwave photonics interrogation for multiplexing fiber Fabry-Perot sensors.
Optics Express, 2021 A microwave photonics interrogation system for multiplexing fiber Fabry-Perot (FP) sensors is demonstrated in this paper. Different from previous FP demodulation schemes, this system aims at quasi-distributed sensing networks composed of FP sensors with ...
Nishan Wu +6 more
semanticscholar +1 more source
Optical Fiber Delay Lines in Microwave Photonics: Sensitivity to Temperature and Means to Reduce it
Journal of Lightwave Technology, 2021 One of the key functionalities in microwave photonics is to be able to define controllable time delays during the signal processing. Optical fibers are often used to achieve this functionality, especially when a long delay or a widely-tunable delay is ...
Meng Ding +12 more
semanticscholar +1 more source
Reconfigurable Liquid Crystal Dielectric Image Line Leaky Wave Antenna at W-Band
IEEE Journal of Microwaves, 2022 This paper presents a reconfigurable dielectric image line leaky wave antenna at W-band. Reconfigurability is achieved by applying bias to anisotropic liquid crystal (LC) filled into the antenna. Instead of separating RF components and DC-bias network by
Henning Tesmer +4 more
doaj +1 more source
Bandwidth and Center Frequency Reconfigurable Waveguide Filter Based on Liquid Crystal Technology
IEEE Journal of Microwaves, 2022 This paper presents for the first time a fully electronically reconfigurable waveguide filter tunable in bandwidth and center frequency based on liquid crystal (LC) technology.
Fynn Kamrath +10 more
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Novel Hybrid Electric/Magnetic Bias Concept for Tunable Liquid Crystal Based Filter
IEEE Journal of Microwaves, 2022 This paper presents a novel hybrid bias concept for liquid crystal (LC) filter by using simultaneously electric and magnetic bias fields. It enables continuous tuning with a simplified electrode design, decreased number of electrodes and reduced bias ...
Ersin Polat +8 more
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