Results 21 to 30 of about 8,214 (259)
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
openaire +3 more sources
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
openaire +3 more sources
SiGe Microwave Phototransistors for Microwave-Photonics Applications
2020 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium (BCICTS), 2020 This paper gives an overview on the development of microwave phototransistors within SiGe Bipolar and BiCMOS technologies. The physics and design of SiGe/Si Heterojunction Bipolar Phototransistors (HPT) are covered.
Peressutti F. +8 more
core +2 more sources
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
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
doaj +1 more source
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
doaj +1 more source
Reconfigurable Millimeter-Wave Components Based on Liquid Crystal Technology for Smart Applications
Crystals, 2020 This paper presents recent development of tunable microwave liquid crystal (LC) components in the lower millimeter wave (mmW) regime up to the W-band. With the utilization of increasing frequency, conventional metallic waveguide structures prove to be ...
Ersin Polat +7 more
doaj +1 more source
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
doaj +1 more source
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.
Wang, Chao, Chao Wang
core +1 more source