Results 221 to 230 of about 180,863 (279)
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7.1 kW coherent beam combining system based on a seven-channel fiber amplifier array
, 2021Coherently combining of seven-channel narrow-linewidth, linear-polarized, kW-level power all-fiber amplifiers has been successfully demonstrated by using the stochastic parallel gradient descent (SPGD) algorithm.
Peng-Fei Ma +12 more
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Coherent Combining with Imperfect Beams
Advances in Optical Materials, 2011Coherent combining efficiency losses from spatially and temporally mismatched input fields are quantified in terms of normalized variances of the field parameters. We derive expressions for Gaussian beams relevant for coherent fiber arrays.
Gregory D. Goodno +2 more
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Generation of optical vortex lattices by a coherent beam combining system.
Optics Letters, 2021Owing to the unique features in intensity and phase structures, optical vortex lattices (OVLs) have attracted intensive attention and promoted various applications. However, the power scaling of OVLs always presents a critical challenge.
Jin-Hu Long +8 more
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Coherent beam combining – unlimited flexibility in laser material processing
PhotonicsViews, 2022Civan's unique beam shaping technology enables the generation of beam patterns with an arbitrary variation of the intensity distribution within the laser beam. In addition, it is possible to switch between these patterns at MHz frequencies.
Jonas Wagner +7 more
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Coherent Polarization Beam Combination
IEEE Journal of Quantum Electronics, 2010A new, scalable coherent beam combination architecture has been developed and experimentally verified. Coherent Polarization Beam Combination (CPBC) relies on the combination of multiple beams through a coherent superposition of orthogonal polarization states. By actively controlling the phases and polarizations of individual beams, the creation of new
Radoslaw Uberna +2 more
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Simplified sensitivity analysis of coherent beam combining in a tiled aperture architecture.
Applied Optics, 2021We propose a simple analytical-numerical model for simplified sensitivity analysis of coherent beam combining of several dozens of emitters arranged in 2D tiled architecture.
J. Jabczynski +3 more
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First experimental demonstration of coherent beam combining of more than 100 beams
Photonics Research, 2020Coherent beam combining of 107 beams has been demonstrated for the first time to the best of our knowledge. When the system was in closed loop, the pattern in far-field was stable and the fringe contrast was >96%.
Hong-Xiang Chang +10 more
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22mJ Coherent Beam Combining from Three 85μm Core CCC Fiber Amplifiers
Conference on Lasers and Electro-Optics, 2021We demonstrate coherent beam combining of pulses from 3 chirally-coupled core optical fibers into a single 22mJ pulse, achieving >7mJ per channel combining and allowing for future temporal combination and compression at high energy.
A. Rainville +4 more
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Analysis of multiwavelength coherent beam combining effect
Applied Optics, 2012The combination effect of multiwavelength active coherent beam combination (CBC) is investigated theoretically. The dependence of the combination effect on the optical path control precision, spectral width, wavelength number, and channel number is revealed.
Han, Kai, Xu, Xiaojun, Liu, Zejin
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Beam-quality improvement with a bio-inspired sunflower array for coherent beam combining.
Applied Optics, 2021The beam quality of coherent beam combing (CBC) is significantly affected by the beam array schemes, which are regular hexagon arrays in most research. Here, we propose a bio-inspired Fermat spiral array (FSA) for large-array CBC, for the first time to ...
Jia-Li Liao +6 more
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