Coherent beam combining of two all-PM thulium-doped fiber chirped pulse amplifiers
Sign Up to like & getrecommendations! Published in 2024 at "Frontiers of Optoelectronics"
DOI: 10.1007/s12200-024-00117-3
Abstract: In this paper, we report a coherent beam combining (CBC) system that involves two thulium-doped all-polarization maintaining (PM) fiber chirped pulse amplifiers. Through phase-locking the two channels via a fiber stretcher by using the stochastic… read more here.
Keywords: fiber chirped; two thulium; chirped pulse; coherent beam ... See more keywords
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
Scalable structure of coherent polarization beam combining based on tapered diode laser amplifiers
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106470
Abstract: Abstract We develop a scalable multi-stage beam combining system based on the superposition of four tapered diode laser amplifiers using the coherent polarization beam combining. By employing the combination of master oscillator power amplification and… read more here.
Keywords: beam combining; beam; tapered diode; laser amplifiers ... 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
High-power direct diode laser output by spectral beam combining
Sign Up to like & getrecommendations! Published in 2018 at "Laser Physics"
DOI: 10.1088/1555-6611/aa9d09
Abstract: We demonstrate a spectral beam combining scheme based on multiple mini-bar stacks, which have more diode laser combining elements, to increase the combined diode laser power and realize equal beam quality in both the fast… read more here.
Keywords: beam; spectral beam; beam combining; diode laser ... See more keywords
Incoherent Space Beam Combining of Fiber-Transmitted Semiconductor Lasers for Oil Well Laser Perforation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2919784
Abstract: This paper demonstrates a $19 \times 1$ incoherent space beam combiner tailored for oil well laser perforation, which is used for an incoherent laser beam combining of 19 fiber-transmitted semiconductor lasers around a wavelength of… read more here.
Keywords: beam combining; space beam; beam; incoherent space ... See more keywords
Physics Based Phase Control in Coherent Beam Combining Systems
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3457852
Abstract: In the realm of high-power lasers, coherent beam combining has become a scalable and dependable technology. However, achieving phase synchronization in a coherent beam-combining (CBC) system is a significant challenge. The predominant approach for tackling… read more here.
Keywords: coherent beam; beam combining; approach; phase ... See more keywords
Controlled Generation of Orbital Angular Momentum Beams With Coherent Beam Combining Digital Laser and Liquid-Crystal q-Plate
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2024.3421244
Abstract: We report on versatile orbital angular momentum beam generation through the association of a 61-channels coherent beam combining digital laser and a liquid-crystal q-plate. Particularly, high-order vortex beams that carry orbital angular momentum are generated… read more here.
Keywords: angular momentum; orbital angular; coherent beam; beam ... See more keywords
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
Investigation on the thermal blooming effect in a high power spectral beam combining fiber laser system.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.447850
Abstract: We demonstrate the influence of the thermal blooming effect on the far-field beam quality in a seven-channel spectral beam combining system. Stimulated Raman scattering in the incident narrow-linewidth fiber amplifier is verified to be the… read more here.
Keywords: beam combining; blooming effect; beam; spectral beam ... See more keywords