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Quantum Dot Reflective Semiconductor Optical Amplifiers: Optical Pumping Compared with Electrical Pumping [PDF]

open access: yesNanomaterials, 2022
A comprehensive study has been conducted on quantum dot reflective semiconductor optical amplifiers (QD-RSOAs) with optical pumps (OPs). Moreover, few studies have been completed on OP-based QD-RSOAs.
Farshad Serat Nahaei   +2 more
doaj   +5 more sources

Hybrid Electro-Optical Pumping of Active Plasmonic Nanostructures [PDF]

open access: yesNanomaterials, 2020
Surface plasmon polaritons (SPPs) offer a unique opportunity to overcome the diffraction limit of light. However, this opportunity comes at the cost of the strong absorption of the SPP field in a metal, which unavoidably limits the SPP propagation length
Andrey A. Vyshnevyy, Dmitry Yu. Fedyanin
doaj   +2 more sources

Efficient optical pumping using hyperfine levels in 145Nd3+:Y2SiO5 and its application to optical storage

open access: yesNew Journal of Physics, 2018
Efficient optical pumping is an important tool for state initialization in quantum technologies, such as optical quantum memories. In crystals doped with Kramers rare-earth ions, such as erbium and neodymium, efficient optical pumping is challenging due ...
Emmanuel Zambrini Cruzeiro   +6 more
doaj   +3 more sources

Incoherent pumping-induced optical limiting [PDF]

open access: yesScientific Reports
The nonlinear optical absorption of a probe field is investigated in a three-level V-type quantum system under a pump-probe configuration. It is demonstrated that the system exhibits saturable absorption (SA) behavior.
Noushin Parkan   +3 more
doaj   +2 more sources

Alleviating optical pumping inhomogeneity using a polarization-encoded metasurface in NMR co-magnetometers [PDF]

open access: yesMicrosystems & Nanoengineering
In nuclear magnetic resonance (NMR) co-magnetometers, the non-uniform transverse energy distribution of the pumping Gaussian beam can result in substantial optical pumping inhomogeneity and decoherence of atomic spins, which hinder the improvement of the
Yan Xu   +6 more
doaj   +2 more sources

Cold-atom optical filtering enhanced by optical pumping

open access: yesFrontiers in Physics, 2022
Atomic optical filters such as Faraday anomalous dispersion optical filters (FADOFs) or similar technologies can achieve very narrow optical bandwidth close to the scale of atomic linewidth, which can be greatly reduced in cold atoms. However, limited by
Xiaolei Guan   +7 more
doaj   +1 more source

Dependence of mode profile on the pumping configuration of a LED-pumped Ce:Nd:YAG laser [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2021
Transverse intensity distribution or laser mode profile is one of the most important characteristics of a laser oscillator. In the present study, mode profile of a LED-pumped Ce:Nd:YAG laser oscillator and its dependency on the geometrical configuration ...
F. Hokmabadi   +2 more
doaj   +1 more source

Remote Pumping in Point to Multi-point Networks

open access: yesJournal of Communications Software and Systems, 2022
A remotely pumped Erbium-doped system for the amplification of an optical signal for long-reach (LR) next-generation passive optical networks (NG-PONs) is presented in this paper.
Petr Munster   +3 more
doaj   +1 more source

Mid-Infrared supercontinuum absorption spectroscopy beyond 7 µm based on free Arsenic chalcogenide fiber [PDF]

open access: yesEPJ Web of Conferences, 2023
Mid-Infrared methane (CH4) spectroscopy results were obtained in band III beyond 7 µm. To achieve this, the generation of supercontinuum covering the spectral range between 5 and 12 µm was realized by using purified chalcogenide optical fibers free of ...
Bizot Rémi   +11 more
doaj   +1 more source

Efficient Optically-Pumped Semiconductor Optical Amplifier in a Coupled-Waveguide Configuration: A Novel Proposal

open access: yesIEEE Photonics Journal, 2021
We propose an efficient scheme of optical pumping and a compact design of an optically-pumped semiconductor optical amplifier (OP-SOA), with gain characteristics which are qualitatively similar to that of conventional (electrically-pumped) SOA.
Nithin Vogirala, M. Shenoy, Yogesh Kumar
doaj   +1 more source

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