Results 31 to 40 of about 90,037 (273)
Long-haul optical transmission link using low-noise phase-sensitive amplifiers
Nature Communications, 2018 Phase-sensitive amplifiers are known for low-noise amplification and nonlinearity mitigation, but their long-haul implementation is challenging. The authors use these amplifiers to show a long-haul optical link with a 5.6-times reach improvement over ...
Samuel L.I. Olsson +4 more
doaj +1 more source
Exceptional-point-based optical amplifiers [PDF]
, 2019 The gain-bandwidth product is a fundamental figure of merit that restricts the operation of optical amplifiers. Here, we introduce a design paradigm based on exceptional points, which relaxes this limitation and allows for the building of a new ...
Eisfeld, A. +4 more
core +3 more sources
Design of Radiation-Hardened Rare-Earth Doped Amplifiers Through a Coupled Experiment/Simulation Approach [PDF]
, 2013 We present an approach coupling a limited experimental number of tests with numerical simulations regarding the design of radiation-hardened (RH) rare earth (RE)-doped fiber amplifiers.
Boscaino, Roberto +15 more
core +4 more sources
FEBS Letters, EarlyView.Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley +1 more source
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IEEE Photonics Journal, 2013 We propose and demonstrate the concept of a novel 1 × N lossless adaptive optical power splitter (OPS) structure integrating a software-driven Opto-VLSI processor, optical amplifiers, and an array of 4-f imaging systems.
Haithem A. B. Mustafa +2 more
doaj +1 more source
Floquet-Mode Traveling-Wave Parametric Amplifiers
PRX Quantum, 2022 Simultaneous ideal quantum measurements of multiple single-photon-level signals would advance applications in quantum information processing, metrology, and astronomy but require the first amplifier to be simultaneously broadband, quantum limited, and ...
Kaidong Peng +5 more
doaj +1 more source
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2021 Gigabit passive optical networks (GPON) are the most advanced technology. The data transfer rate is 2.5 Gbps for downstream and 1.25 Gbps for upstreams. But this network architecture has a limited physical network length of 20 km. This is due to the high
A. D. Tussupov +2 more
doaj +1 more source
Co-axial dual-core resonant leaky fibre for optical amplifiers [PDF]
, 2008 We present a co-axial dual-core resonant leaky optical fibre design, in which the outer core is made highly leaky. A suitable choice of parameters can enable us to resonantly couple power from the inner core to the outer core. In a large-core fibre, such
Ajeet Kumar +9 more
core +4 more sources
Molecular Oncology, EarlyView.Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano +6 more
wiley +1 more source
Optical Amplifiers for Access and Passive Optical Networks: A Tutorial
Applied Sciences, 2020 For many years, passive optical networks (PONs) have received a considerable amount of attention regarding their potential for providing broadband connectivity, especially in remote areas, to enable better life conditions for all citizens. However, it is
Tomas Horvath +3 more
doaj +1 more source