Results 201 to 210 of about 187,475 (328)

Collecting Telecom Photons From Circular Bragg Gratings Using Optical Fibers and 3D Printed Micro‐Lenses

Advanced Quantum Technologies, EarlyView.
Coupling quantum light into optical single‐mode fibers is a strict requirement for quantum technological implementations. This work experimentally quantifies coupling efficiency of telecom single‐photons from circular Bragg grating cavities into silica fibers even equipped with 3D‐printed micro‐lenses.
Nam Tran, Pavel Ruchka, Sara Jakovljevic, Benjamin Breiholz, Peter Gierß, Ponraj Vijayan, Carlos Eduardo Jimenez, Alois Herkommer, Michael Jetter, Simone Luca Portalupi, Harald Giessen, Peter Michler   +11 more
wiley   +1 more source

High-Power Coupled Wideband Low-Frequency Antenna Design for Enhanced Long-Range Loran-C Timing Synchronization. [PDF]

Sensors (Basel)
Wu J, Wang X, Liu J, Fan C, Zhang C, Zeng Z, Wang L, Xu J.   +7 more
europepmc   +1 more source

Boosting silica micro-rod Q factor to 8.28 × 10⁹ for fully stabilizing a soliton microcomb. [PDF]

Nat Commun
Pan TY, Tan T, Duan B, Chang B, Tang F, Huang YJ, Yan YZ, Huang SG, Yang DQ, Yao BC.   +9 more
europepmc   +1 more source

Internet Packet Sniffing and Its Impact on the Network Neutrality Debate and the Balance of Power Between Intellectual Property Creators and Consumers [PDF]

, 2008
Frieden, Rob
core   +1 more source

IDLB: An SDN‐Based Load‐Balancing Routing Protocol for Autonomous Satellite Constellation Networks

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Routing in satellite constellation networks with intersatellite links has become an important aspect to enable broadband Internet access and to integrate into terrestrial networks. However, their dynamic characteristics and large physical size require specifically tailored solutions.
Manuel M. H. Roth, Hartmut Brandt, Hermann Bischl, David Fernández Piñas, Guray Acar   +4 more
wiley   +1 more source

Location‐Assisted Graph‐Based User Scheduling in Multi‐User MIMO LEO NTN Systems

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper addresses user clustering and scheduling for multi‐user MIMO low Earth orbit nonterrestrial network systems in full frequency reuse. Since the number of on‐ground user terminals is usually much higher than the number of on‐board LEO satellite antennas, user scheduling becomes a fundamental task.
Bilal Ahmad, Daniel Gaetano Riviello, Bruno De Filippo, Alessandro Guidotti, Alessandro Vanelli‐Coralli   +4 more
wiley   +1 more source

Multifunctional metasurface coding for visible vortex beam generation, deflection and focusing. [PDF]

Nanophotonics
Tian R, Zhang Z, Gao L.
europepmc   +1 more source

Advanced Fade Mitigation Techniques for Q/V Band SATCOM Systems

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Adaptive fade mitigation techniques, such as smart gateway diversity (SGD), are essential in addressing atmospheric fading affecting the operation of high throughput and very high throughput satellite systems at Ka‐band and beyond. Specifically, the Q/V‐band, offering up to 5 GHz of available spectrum, is very attractive for future high data ...
Marianna Biscarini, Arijit De, Lorenzo Luini, Carlo Riva, Antonio Martellucci, Roberto Nebuloni   +5 more
wiley   +1 more source

The Path to Global Equity in Surgical Care: Clinical and Technical Results of Cross-Border, Ultra-Long-Distance, Asia to Middle East Human Telesurgery. [PDF]

Int Braz J Urol
Aldousari S, Almarzouq A, Eltafahny A, Alhelal S, Jiayin W, Hassan A, Shahin A, Bubishate S, Bahbahani B.   +8 more
europepmc   +1 more source