Results 21 to 30 of about 47,152 (263)

WDM–TDM NG-PON Power Budget Extension by Utilizing SOA in the Remote Node

open access: yesIEEE Photonics Journal, 2014
Today, even in access networks, data traffic is enormously increasing, a trend that causes existing passive optical network (PON) infrastructures to become bottlenecks in a tele- and data-communication infrastructure, which is aimed to be both broadband ...
A. Emsia   +5 more
doaj   +1 more source

Wideband image-reject RF channelization based on soliton microcombs (invited paper)

open access: yesAPL Photonics, 2023
Wideband radio frequency (RF) channelization is essential for the reception and detection of cross-band RF signals in various applications, including communications, radar, and spectrum sensing. However, digital channelizers are inefficient at performing
Jiewen Ding   +7 more
doaj   +1 more source

Microwave Liquid Crystal Technology

open access: yesCrystals, 2018
Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems.
Holger Maune   +5 more
doaj   +1 more source

Reference frequencies comb generation for microwave photonics ADC with signal spectral-interval estimation [PDF]

open access: yesITM Web of Conferences, 2019
Formation of a reference frequency comb in a circuit comprising a highly stable continuous laser and an amplitude Mach- Zehnder modulator with two independent RF inputs working with large modulation index for use in a high-speed microwave photonics ADC ...
Kulagin Victor   +4 more
doaj   +1 more source

Passive Radar Imaging of Moving Targets Using WiFi Signals

open access: yesLeida xuebao, 2015
In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng   +3 more
doaj   +1 more source

Ultra-low phase noise all-optical microwave generation setup based on commercial devices [PDF]

open access: yes, 2015
In this paper, we present a very simple design based on commercial devices for the all-optical generation of ultra-low phase noise microwave signals.
Bigler, E.   +7 more
core   +2 more sources

Photonics-Based Microwave Image-Reject Mixer

open access: yesPhotonics, 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   +1 more source

Numerical Optimization of an Open-Ended Coaxial Slot Applicator for the Detection and Microwave Ablation of Tumors

open access: yesBiology, 2021
A multiobjective optimization method for a dual-mode microwave applicator is proposed. Dual-modality means that microwaves are used apart from the treatment, and also for the monitoring of the microwave ablation intervention. (1) The use of computational
Carolin Hessinger   +4 more
doaj   +1 more source

Switchable 10, 20, and 30 GHz region photonics-based microwave generation using thulium-doped fluoride fiber laser [PDF]

open access: yes, 2018
In this work, switchable 10, 20, and 30 GHz region photonics-based microwave generation in a fiber laser cavity is proposed and demonstrated. The microwave generation is based on the beating of a dual-wavelength thuliumdoped fluoride fiber laser.
Ahmad, Harith   +4 more
core   +1 more source

Quantum probe of an on-chip broadband interferometer for quantum microwave photonics

open access: yes, 2018
Quantum microwave photonics aims at generating, routing, and manipulating propagating quantum microwave fields in the spirit of optical photonics. To this end, the strong nonlinearities of superconducting quantum circuits can be used to either improve or
Deppe, F.   +13 more
core   +1 more source

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