Results 31 to 40 of about 11,035 (264)

Passive Coherent Polarization Beam Combination of a Four-Fiber Amplifier Array

open access: yesIEEE Photonics Journal, 2013
We present what we believe to be a new architecture for coherent beam combination of a fiber amplifier array. Four polarization-maintained fiber amplifiers are passively coherent polarization beam combined by using an optical feedback in a ring cavity ...
P. F. Ma   +5 more
doaj   +1 more source

Multiplexed emitting system for an energy-recovery-linac-based coherent light source

open access: yesJournal of Synchrotron Radiation, 2023
Recently, a novel approach has been proposed to produce ultrashort, fully coherent high-repetition-rate EUV and X-ray radiation by combining an energy recovery linac (ERL) with the angular-dispersion-induced microbunching methodology.
Lu Cao   +5 more
doaj   +1 more source

Effect of beam profile and partial coherence on coherent beam combining performance

open access: yesOptics 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

132 W 132 μJ Femtosecond Pulses from a Coherently Combined System of Two Rod-Type Photonic Crystal Fibers

open access: yesPhotonics, 2023
A coherent beam combination has the potential to revolutionize high-peak-power laser systems. However, achieving a high-average-power ultrashort pulse is difficult due to the accumulation of a nonlinear phase and gain narrowing.
Gehui Xie   +11 more
doaj   +1 more source

HIBISCUS: Simulator for the development of control strategies for coherent beam combining lasers with PISTIL technique [PDF]

open access: yesEPJ Web of Conferences, 2023
CBC (Coherent Beam Combining) is a key technology for the realisation of intense lasers. In this context, PISTIL (PISton and TILt interferometry), a precise metrology tool for measuring segmented wave surfaces, has been developed and used in particular ...
Rousseaux Thomas   +4 more
doaj   +1 more source

Coherent beam combining of optical vortices

open access: yes, 2023
We experimentally demonstrate the power scaling of optical vortices by the coherent beam combining, 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 generated by the
Fathi, Hossein   +2 more
openaire   +2 more sources

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

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

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

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