Results 31 to 40 of about 2,250,619 (282)

Novel Multiple-Image Encryption Scheme Based on Coherent Beam Combining and Equal Modulus Decomposition

open access: yesApplied Sciences, 2021
In our research, we propose a novel asymmetric multiple-image encryption method using a conjugate Dammann grating (CDG), which is based on the coherent beam combining (CBC) principle.
Wei Li, Aimin Yan, Hongbo Zhang
doaj   +1 more source

Study of high power CBC fiber laser systems with non-equal splitting ratio beam-splitters

open access: yesResults in Optics, 2023
High power coherent beam combination (CBC) with non-equal splitting ratio beam splitters (BS) is studied. A BS-based two-channel CBC laser system has been built, and experiments with 50:50 BS and 30:70 BS has been carried.
Yuefang Yan   +8 more
doaj   +1 more source

Dynamic focus shaping with mixed-aperture coherent beam combining

open access: yes, 2021
A novel concept for dynamic focus shaping based on highly efficient coherent beam combining with microlens arrays (MLA) as combining element is presented.
Aleksander Budnicki (9757301)   +7 more
core   +1 more source

Extending the Photon Energy Coverage of a Seeded Free-Electron Laser via Reverse Taper Enhanced Harmonic Cascade

open access: yesPhotonics, 2021
External seeded free-electron lasers (FELs) hold promising prospects for producing intense coherent radiation at high harmonics of a conventional laser.
Kaiqing Zhang   +6 more
doaj   +1 more source

Multi-plane light conversion coherent beam combining

open access: yesHigh Power Laser Science and Engineering
Multi-plane light conversion (MPLC) is a versatile technique that enables arbitrary manipulation of optical fields, and is numerically investigated as a novel avenue for coherent beam combining (CBC) applications.
Hongbing Zhou   +11 more
doaj   +1 more source

Toward Practical Digital Phase Alignment for Coherent Beam Combining in Multi-Aperture Free Space Coherent Optical Receivers

open access: yesIEEE Access, 2020
In free space optical communication systems, multi-aperture coherent optical receivers based on digital coherent beam combining (D-CBC) technique can provide exceptionally high sensitivity and are more robust to the atmosphere turbulence compared with ...
Chenjie Rao   +4 more
doaj   +1 more source

Coherent beam combining of high power tapered (poster)

open access: yes, 2017
International audienceWe describe the coherent beam combining of three high-power tapered laser amplifiers seeded by a DFB laser at λ = 976 nm, and demonstrate a combined power of 12.9 W in a close to diffraction-limit beam at a combining efficiency of >
Moron, Frédéric   +8 more
core   +5 more sources

Machine learning phase control of filled-aperture coherent beam combining: principle and numerical demonstration

open access: yesHigh Power Laser Science and Engineering
Machine learning has already shown promising potential in tiled-aperture coherent beam combining (CBC) to achieve versatile advanced applications. By sampling the spatially separated laser array before the combiner and detuning the optical path delays ...
Hongbing Zhou   +10 more
doaj   +1 more source

Coherent combining of large-aperture high-energy Nd:glass laser amplifiers

open access: yesHigh Power Laser Science and Engineering
We present coherent beam combining of nanosecond pulses with 20-J energy and large beams using a Sagnac interferometer geometry based on Nd:glass rod-type amplifiers.
Pierre Lebegue   +7 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

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