Single step phase optimisation for coherent beam combination using deep learning [PDF]
Scientific Reports, 2022 Coherent beam combination of multiple fibres can be used to overcome limitations such as the power handling capability of single fibre configurations. In such a scheme, the focal intensity profile is critically dependent upon the relative phase of each ...
Ben Mills +5 more
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Single-step phase identification and phase locking for coherent beam combination using deep learning [PDF]
Scientific ReportsCoherent beam combination offers a solution to the challenges associated with the power handling capacity of individual fibres, however, the combined intensity profile strongly depends on the relative phase of each fibre. Optimal combination necessitates
Yunhui Xie +6 more
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Deep learning for simultaneous phase and amplitude identification in coherent beam combination [PDF]
Scientific ReportsCoherent beam combination has emerged as a promising strategy for overcoming the power limitations of individual fibre lasers. This approach relies on maintaining precise phase difference between the constituent beamlets, which are typically established ...
Fedor Chernikov +5 more
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Passive Coherent Polarization Beam Combination of a Four-Fiber Amplifier Array
IEEE 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
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Realization of large energy proportion in the central lobe by coherent beam combination based on conformal projection system [PDF]
Scientific Reports, 2017 In this paper, we experimentally validate a tiled-aperture conformal projection system with the largest array filling factor and element beam truncation factor to the best of our knowledge. The conformal projection system, which is made up of a hexagonal
Dong Zhi +7 more
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Exploring five types of beam shaping using tiled-aperture coherent beam combining [PDF]
Communications EngineeringCoherent Beam Combination (CBC) presents a promising solution to circumvent the power-scaling limitations of High-Power Fiber Lasers (HPFLs) by spatially combining the outputs of multiple independently pumped fibres.
Yunhui Xie +4 more
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Study of high power CBC fiber laser systems with non-equal splitting ratio beam-splitters
Results 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
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Photonics, 2023 The stimulated Brillouin scattering (SBS) effect, a new approach to the combination of solid-state lasers, can be actualized via coherent synthesis. In this paper, a solid-state laser based on SBS passive phase locking, utilizing the master oscillator ...
Yu Yu +7 more
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Ultrafast Fiber Technologies for Compact Laser Wake Field in Medical Application
Photonics, 2022 Technologies, performances and maturity of ultrafast fiber lasers and fiber delivery of ultrafast pulses are discussed for the medical deployment of laser-wake-field acceleration (LWFA).
Weijian Sha +2 more
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Scaling potential of beam-splitter-based coherent beam combination
Optics Express, 2021 The impact of nonlinear refraction and residual absorption on the achievable peak- and average power in beam-splitter-based coherent beam combination is analyzed theoretically. While the peak power remains limited only by the aperture size, a fundamental average power limit is given by the thermo-optical and thermo-mechanical properties of the beam ...
Müller, Michael +6 more
openaire +4 more sources