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
phase locking system for coherent combining of large aperture fiber laser beams is demonstrated
in this paper. Herein, the phase … for phase locking, and the phase-locking system can …

Towards coherent combining of X-band high power microwaves: phase-locked long pulse radiations by a relativistic triaxial klystron amplifier

J Ju, J Zhang, Z Qi, J Yang, T Shu, J Zhang… - Scientific Reports, 2016 - nature.com
… Furthermore, by far demonstration of phase-locking of the … the feasibility of coherent power
combining of HPMs in X-band. … a high efficient coherent power combining in experiment. …

Phase-locked all-cavity-extraction relativistic magnetrons with azimuth-uniform coupling structure for coherent combining applications

R Cheng, R Xiao, T Li, J Wang, C He… - … on Electron Devices, 2023 - ieeexplore.ieee.org
… trend for the coherentcombine the output power, the phase locking of multiple sources is
crucial, which means that the devices must operate at the same frequency with a certain phase

Coherent beam combining using an internally sensed optical phased array of frequency-offset phase locked lasers

LE Roberts, RL Ward, C Smith, DA Shaddock - Photonics, 2020 - mdpi.com
… dynamic phase differences between them. We present a scalable technique based on
frequency-offset phase locking and digitally enhanced interferometry to clone the coherence of …

Frequency Synchronization and Coherent Combining of Two Fiber Ring Cavities

Y You, H Shen, Y Qi, B He… - IEEE Photonics …, 2021 - ieeexplore.ieee.org
… of the combined laser was improved under the optical injection lock and phase lock loop.
The … The injection lock is an alternative method for coherently combining the slave oscillators. …

Coherent combination of ultrafast fiber amplifiers

M Hanna, F Guichard, Y Zaouter… - Journal of Physics B …, 2016 - iopscience.iop.org
… This has been experimentally characterized, showing that it is sufficient to correct long term
phase drifts with a bandwidth of 2 Hz to phase lock the system. The second difference is that …

Coherent beam combining of optical parametric oscillators

L Feng, X Wang, W Ke - JOSA B, 2017 - opg.optica.org
… We propose a possible way to achieve coherent beam combining (CBC) for the optical … is
to lock the phase of an individual wave in the three-wave-mixing process. The phase evolution …

Combinatorial study of coherent multi-channel phase-locking based on covariance matrix adaptation evolution strategy

H Kim, M Yeo, Y Jeong - Journal of the Korean Physical Society, 2024 - Springer
phase control algorithm and discuss its feasibility and channel-scalability in relation with the
beam combining efficiency and phase … in implementing coherent beam combining using the …

Highly scalable femtosecond coherent beam combining demonstrated with 19 fibers

J Le Dortz, A Heilmann, M Antier, J Bourderionnet… - Optics letters, 2017 - opg.optica.org
… with active phase locking involve phase detection, calculation of the correction and
compensation of the phase mismatch of each amplifier chain by means of phase modulators [9]. …

Deep reinforcement learning for coherent beam combining applications

H Tünnermann, A Shirakawa - Optics express, 2019 - opg.optica.org
… a neural network suitable for phase locking by only observing data without any explicit
information about optics or coherent beam combining. The training phase took about 4 hours on …