Fiber laser development enabled by machine learning: review and prospect
In recent years, machine learning, especially various deep neural networks, as an emerging
technique for data analysis and processing, has brought novel insights into the development …
technique for data analysis and processing, has brought novel insights into the development …
First experimental demonstration of coherent beam combining of more than 100 beams
H Chang, Q Chang, J **, T Hou, R Su, P Ma… - Photonics …, 2020 - opg.optica.org
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 …
of our knowledge. When the system was in closed loop, the pattern in far-field was stable …
7.1 kW coherent beam combining system based on a seven-channel fiber amplifier array
Coherently combining of seven-channel narrow-linewidth, linear-polarized, kW-level power
all-fiber amplifiers has been successfully demonstrated by using the stochastic parallel …
all-fiber amplifiers has been successfully demonstrated by using the stochastic parallel …
Challenges in coherent beam combining of high power fiber amplifiers: a review
Coherent combining of light from multiple high power fiber amplifiers is a promising pathway
to scaling the output power to hundreds of kiloWatts. In the last decade, substantial progress …
to scaling the output power to hundreds of kiloWatts. In the last decade, substantial progress …
Free control of far-field scattering angle of transmission terahertz wave using multilayer split-ring resonators' metasurfaces
Y Tian, X **g, H Gan, C Li, Z Hong - Frontiers of Physics, 2020 - Springer
To enhance transmission efficiency of Pancharatnam-Berry (PB) phase metasurfaces,
multilayer split-ring resonators were proposed to develop encoding sequences. As per the …
multilayer split-ring resonators were proposed to develop encoding sequences. As per the …
Experimental phase control of a 100 laser beam array with quasi-reinforcement learning of a neural network in an error reduction loop
An innovative scheme is proposed for the dynamic phase control of a laser beam array. It is
based on a simple neural network included in a phase correction loop that predicts the …
based on a simple neural network included in a phase correction loop that predicts the …
Deep-learning-assisted, two-stage phase control method for high-power mode-programmable orbital angular momentum beam generation
High-power mode-programmable orbital angular momentum (OAM) beams have received
substantial attention in recent years. They are widely used in optical communication …
substantial attention in recent years. They are widely used in optical communication …
Manipulation of wave scattering by Fourier convolution operations with Pancharatnam-Berry coding metasurface
T Zhao, X **g, X Tang, X Bie, T Luo, H Gan… - Optics and Lasers in …, 2021 - Elsevier
We propose an encoding metasurface with three-layers C-shaped unit cell structure. The
transmission phase from 0 to 2π can be obtained by using different rotation angles of …
transmission phase from 0 to 2π can be obtained by using different rotation angles of …
Single step phase optimisation for coherent beam combination using deep learning
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 …
the power handling capability of single fibre configurations. In such a scheme, the focal …
Compact internal sensing phase locking system for coherent combining of fiber laser array
J Long, H Chang, Y Zhang, T Hou, Q Chang… - Optics & Laser …, 2022 - Elsevier
A compact internal sensing phase locking system for coherent combining of large aperture
fiber laser beams is demonstrated in this paper. Herein, the phase noises in the laser …
fiber laser beams is demonstrated in this paper. Herein, the phase noises in the laser …