Results 1 to 10 of about 5,339 (220)
Photonics-Based Microwave Image-Reject Mixer
Photonics, 2018 Recent developments in photonics-based microwave image-reject mixers (IRMs) are reviewed with an emphasis on the pre-filtering method, which applies an optical or electrical filter to remove the undesired image, and the phase cancellation method, which ...
Dan Zhu, Shilong Pan
doaj +3 more sources
Observation of parity-time symmetry in microwave photonics [PDF]
Light: Science and Applications, 2018 , JOSÉ Capmany
exaly +2 more sources
Single-photon microwave photonics
Science Bulletin, 2022 With the rapid development of microwave photonics technology, high-speed processing and ultra-weak signal detection capability have become the main bottlenecks in many applications. Thanks to the ultra-weak signal detection capability and the extremely low timing jitter properties of single-photon detectors, the combination of single-photon detection ...
Ye, Yang +9 more
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Integrated Microwave Photonic Filters [PDF]
Optical Fiber Communication Conference (OFC) 2021, 2020 Microwave signal filtering is a fundamental and central functionality in radio frequency systems. We review the principles, architectures, and superior performance of emerging integrated microwave photonic filters enabled by on-chip linear and nonlinear photonic devices.
Yang Liu +3 more
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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
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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
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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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IEEE Photonics Journal, 2014 An equivalent-asymmetric coupling coefficient (EACC) distributed feedback laser (DFB) semiconductor laser with equivalent-half apodization grating (EHAG) structure is proposed and experimentally demonstrated for the first time; the EHAG profile is ...
Junshou Zheng +7 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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IEEE Photonics Journal, 2014 The high accuracy of lasing wavelength spacing is one of the key requirements of a distributed feedback (DFB) semiconductor laser array. However, the nonuniformity of the wavelength spacing is increasingly deteriorating with the increase in the channel ...
Yuechun Shi +5 more
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