Results 31 to 40 of about 3,569,129 (292)

Coherent Beam Combination of Ultrafast Fiber Lasers

, 2022
Art. 0902709, 9 S.The performance of fiber laser systems has drastically increased over recent decades, which has opened up new industrial and scientific applications for this technology.
Klenke, A., Stark, H., Müller, M., Kienel, M., Tünnermann, A., Jauregui, C., Limpert, J.   +6 more
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Coherent Beam Combination of Ultrafast Fiber Lasers

, 2021
The performance of fiber laser systems has drastically increased over recent decades, which has opened up new industrial and scientific applications for this technology.
Cesar Jauregui (3957575), Arno Klenke (3958871), Henning Stark (10169048), Marco Kienel (14382072), Andreas Tünnermann (3957578), Michael Müller (17016), Jens Limpert (3957584)   +6 more
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Observation of the Rotational Doppler Effect With Structured Beams in Atomic Vapor

Frontiers in Physics, 2022
A vector beam with the spatial variation polarization has attracted keen interest and is progressively applied in quantum information, quantum communication, precision measurement, and so on.
Shuwei Qiu, Jinwen Wang, Xin Yang, Mingtao Cao, Shougang Zhang, Hong Gao, Fuli Li   +6 more
doaj   +1 more source

Electron beam profile imaging in the presence of coherent optical radiation effects

Physical Review Special Topics. Accelerators and Beams, 2012
High-brightness electron beams with low energy spread at existing and future x-ray free-electron lasers are affected by various collective beam self-interactions and microbunching instabilities. The corresponding coherent optical radiation effects, e.g.,
Christopher Behrens, Christopher Gerth, Gero Kube, Bernhard Schmidt, Stephan Wesch, Minjie Yan   +5 more
doaj   +1 more source

Resonant spin Hall effect of light in random photonic arrays

SciPost Physics, 2023
It has been recently shown that the coherent component of light propagating in transversally disordered media, the so-called coherent mode, exhibits an optical spin Hall effect (SHE).
Federico Carlini, Nicolas Cherroret
doaj   +1 more source

Optimal E-Field Vector Combination for a Highly Focused Antenna-Array [PDF]

, 2014
A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D)
Perallos, Asier, Martinez, R, Sharma, A, Batchelor, John C., Garcia Zuazola, Ignacio Julio, de-Haro Ariet, L   +5 more
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Coherent beam combining of optical vortices

Optics Letters
We experimentally demonstrate the power scaling of optical vortices using the coherent beam combining technique, encompassing topological charges ranging from ℓ = 1 to ℓ = 5 realized on the basis of a Yb-doped fiber short-pulsed laser system. The combining efficiency varies from 83.2 to 96.9% depending on the topological charge and beam pattern quality
Hossein Fathi, Mikko Närhi, Rafael Barros, Regina Gumenyuk   +3 more
openaire   +6 more sources

Average and statistical properties of coherent radiation from steady-state microbunching

Journal of Synchrotron Radiation, 2023
A promising accelerator light source mechanism called steady-state microbunching (SSMB) is being actively studied. With the combination of strong coherent radiation from microbunching and high repetition rate of a storage ring, high-average-power narrow ...
X. J. Deng, Y. Zhang, Z. L. Pan, Z. Z. Li, J. H. Bian, C.-Y. Tsai, R. K. Li, A. W. Chao, W. H. Huang, C. X. Tang   +9 more
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Coherent optical binary polarisation shift keying heterodyne system in the free-space optical turbulence channel [PDF]

, 2011
In this paper, analytical and simulation results for the bit error rate (BER) performance and fading penalty of a coherent optical binary polarization shift keying (2PolSK) heterodyne system adopted for a free space optical (FSO) communication link ...
Z. Ghassemlooy, Tang, Xuan, S. Rajbhandari, Lee , Chung Ghiu, Ghassemlooy, Zabih, Popoola, Wasiu Oyewole, W.O. Popoola, C.G. Lee, Popoola, Wasiu O., Rajbhandari, Sujan, Lee, Chung Ghiu, X. Tang, Ghassemlooy , Zabih   +12 more
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Effect of beam profile and partial coherence on coherent beam combining performance

Optics Communications, 2019
Abstract A numerical model of a coherent beam composed of a two-dimensional array of laser beams was developed; the model enables analysis of random phase mismatch in the combined system, as well as analysis of the influence of atmospheric turbulence.
Jan K. Jabczynski, Przemyslaw Gontar
openaire   +1 more source