All-fiber phase-control-free coherent-beam combining toward femtosecond-pulse amplification
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2016.08.029
Abstract: Abstract Our present work is to develop an all-fiber coherent-beam-combining system that achieves a high-energy femtosecond-pulse fiber laser beyond pulse energy limits due to the nonlinear effects in fiber amplifiers. Coherent-beam combining (CBC) using optical… read more here.
Keywords: coherent beam; femtosecond pulse; beam combining; beam ... See more keywords
Coherent beam combination based on Q-learning algorithm
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.126930
Abstract: Abstract Coherent beam combination(CBC) is an effective method to break the limiting power of a single fiber laser. The Q-learning algorithm is one of the reinforcement learning algorithms. We use the Q-learning algorithm to do… read more here.
Keywords: coherent beam; combination based; learning algorithm; beam combination ... See more keywords
7.1 kW coherent beam combining system based on a seven-channel fiber amplifier array
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2021.107016
Abstract: Abstract Coherently 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. The seven polarization-maintained fiber amplifiers are tiled by a collimator array… read more here.
Keywords: system; combining system; beam combining; power ... See more keywords
Vlasov description of the effects of nonlinear chromaticity on transverse coherent beam instabilities
Sign Up to like & getrecommendations! Published in 2018 at "Physical review accelerators and beams"
DOI: 10.1103/physrevaccelbeams.21.084402
Abstract: A theoretical analysis of transverse coherent beam instabilities in the presence of nonlinear chromatic effects. read more here.
Keywords: coherent beam; transverse coherent; beam instabilities;
Indirectly coherent beam combining of pulsed lasers based on active control of continuous carrier
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.6.066111
Abstract: Abstract. High-power and high-quality pulsed fiber lasers with low repetition frequency are widely applied to various fields ranging from basic science to industrial applications. Coherent beam combining (CBC) is a significant method to obtain that… read more here.
Keywords: continuous carrier; beam combining; pulsed lasers; repetition frequency ... See more keywords
Simplified sensitivity analysis of coherent beam combining in a tiled aperture architecture.
Sign Up to like & getrecommendations! Published in 2021 at "Applied optics"
DOI: 10.1364/ao.421856
Abstract: We propose a simple analytical-numerical model for simplified sensitivity analysis of coherent beam combining of several dozens of emitters arranged in 2D tiled architecture. The main findings are as follows: (i) regarding phase/piston error, the… read more here.
Keywords: simplified sensitivity; beam combining; analysis coherent; coherent beam ... See more keywords
Scalable all-fiber coherent beam combination using digital control.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.456360
Abstract: This paper describes a filled-aperture coherent beam combining (CBC) system based on locking of optical coherence via single-detector electronic-frequency tagging (LOCSET). The sensing and control architecture is implemented using a field-programmable gate array and high-bandwidth… read more here.
Keywords: coherent beam; control; combination; scalable fiber ... See more keywords
Multi-aperture all-fiber active coherent beam combining for free-space optical communication receivers.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.027519
Abstract: Multi-aperture receiver with optical combining architecture is an effective approach to overcome the turbulent atmosphere effect on the performance of the free-space optical (FSO) communications, in which how to combine the multiple laser beams received… read more here.
Keywords: coherent beam; space optical; beam combining; combining module ... See more keywords
Simulating a four-channel coherent beam combination system for femtosecond multi-petawatt lasers.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.036137
Abstract: We simulate a four-channel coherent beam combination (CBC) system designed for femtosecond petawatt lasers. Typical behavior characteristics of the CBC system are revealed. Key parameters relevant to engineering are identified. A simple automatic alignment method… read more here.
Keywords: beam combination; coherent beam; petawatt lasers; system ... See more keywords
Generation of perfect vectorial vortex beams by employing coherent beam combining.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.485396
Abstract: Based on coherent beam combining, we propose a method for generating the perfect vectorial vortex beams (VVBs) with a specially designed radial phase-locked Gaussian laser array, which is composed of two discrete vortex arrays with… read more here.
Keywords: beam combining; perfect vectorial; beam; vectorial vortex ... See more keywords
First experimental demonstration of coherent beam combining of more than 100 beams
Sign Up to like & getrecommendations! Published in 2020 at "Photonics Research"
DOI: 10.1364/prj.409788
Abstract: Coherent 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… read more here.
Keywords: error; coherent beam; first experimental; beam combining ... See more keywords