High-performance laser power converts for direct-energy applications
Optics Express, 2022 Six-junction GaAs laser power converts (LPCs) were designed and fabricated. Each subcell is vertically connected by p++-AlGaAs: C/n++-AlGaAs: Si: Te (1:2) tunnel junction with good thermal stability and a record peak tunneling current density of 1867 A/cm2. The I-V characteristics of LPCs with an aperture of 10×10 mm2 were investigated as a function of
Yudan Gou +10 more
openaire +2 more sources
High-current contactless ferromagnetic converters for multi-profile monitoring and control systems [PDF]
E3S Web of Conferences, 2023 The article shows that the undesirability of breaking the current circuit for the temporary inclusion of electrical measuring devices, the presence of large power losses on shunts, the impossibility of breaking the circuit under the conditions of the ...
Plakhtiev Anatoliy +3 more
doaj +1 more source
High-Efficiency Pulse Width Modulation-Based Wireless Laser Power Transmission Step-Down System
IEEE Photonics Journal, 2020 Wireless laser power transmission is a promising technique in the far-field wireless power supply with the advantages of high-power density, and small transmitter and receiver sizes.
Yunshi Wang +4 more
doaj +1 more source
IEEE Access, 2023 The state of the art in the field of high-power laser transmission is dominated by the so called Vertical Epitaxial Hetero-Structure Architecture (VEHSA), which consists of monolithically stacking p/n cells connected by tunnel junctions.
Javier F. Lozano +5 more
doaj +1 more source
Electron cyclotron converters of microwaves in wireless power transmission systems
RUDN Journal of Engineering Research, 2020 A proposal to use special electron cyclotron devices as effective converters of electromagnetic waves into direct current in modern microwave systems for wireless transmission of electrical energy to the Earth via a microwave channel from solar space ...
Yury A. Pirogov +2 more
doaj +1 more source
A Lunar-Orbiting Satellite Constellation for Wireless Energy Supply
Aerospace, 2023 The goal of this research is to define a lunar-orbiting system that provides power to the lunar surface through wireless power transmission. To meet the power demand of a lunar base, a constellation of satellites placed in stable orbits is used.
Francesco Lopez +5 more
doaj +1 more source
Time interleaved optical sampling for ultra-high speed A/D conversion [PDF]
, 1998 A scheme is proposed for increasing the sampling rate of analogue-to-digital conversion by more than an order of magnitude by combining state-of-the-art A/D converters with photonic technology.
Koumans, R. G. M. P., Yariv, A.
core +1 more source
Wavelength conversion for WDM communication systems using four-wavemixing in semiconductor optical amplifiers [PDF]
, 1997 Four-wave mixing (FWM) in semiconductor optical amplifiers is an attractive mechanism for wavelength conversion in wavelength-division multiplexed (WDM) systems since it provides modulation format and bit rate transparency over wide tuning ranges.
Geraghty, David F. +5 more
core +1 more source
Cascaded wavelength conversion by four-wave mixing in a strained semiconductor optical amplifier at 10 Gb/s [PDF]
, 1997 We demonstrate for the first time cascaded wavelength conversion by four-wave mixing in a semiconductor optical amplifier. Bit-error-rate performance of
Geraghty, David F. +5 more
core +1 more source
Wavelength conversion up to 18 nm at 10 Gb/s by four-wave mixing in a semiconductor optical amplifier [PDF]
, 1997 We characterize the conversion bandwidth of a four-wave mixing semiconductor optical amplifier wavelength converter. Conversion of 10-Gb/s signals with bit-error-rate (BER) performance of
Geraghty, David F. +5 more
core +1 more source