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
This study explores the performance and channel-scalability of the covariance matrix
adaptation evolution strategy (CMA-ES)-based coherent optical phase control algorithm for …

Covariance matrix adaptation evolution strategy based optical phase control

H Kim, Y Jeong - Electronics Letters, 2021 - Wiley Online Library
In this letter, an investigation of the use of a covariance matrix adaptation evolution strategy
(CMA‐ES) algorithm is conducted as the phase‐locking method for multi‐channel coherent …

Proof-of-principle Experimental Study of the CMA-ES Phase-control Algorithm Implemented in a Multichannel Coherent-beam-combining System

M Yeo, H Kim, Y Jeong - Korean Journal of Optics and Photonics, 2024 - koreascience.kr
In this study, the feasibility of using the covariance-matrix-adaptation-evolution-strategy
(CMA-ES) algorithm in a multichannel coherent-beam-combining (CBC) system was …

[PDF][PDF] Hybrid CMA-ES/SPGD algorithm for phase control of a coherent beam combining system and its performance analysis by numerical simulations

M Yeo, H Kim, Y Jeong - 한국광학회지, 2023 - koreascience.kr
In this study, we propose a hybrid phase-control algorithm for multi-channel coherent beam
combining (CBC) system by combining the covariant matrix adaption evolution strategy …

Comprehensive Investigation of Locset and Spgd Algorithms in Coherent Beam Combining Applications

H Zhou, X Feng, L Xie, M Li, H Zhang, H Lin… - Honghuan and Wang … - papers.ssrn.com
Abstract Locking of Optical Coherence by Single-Detector Electronic-Frequency Tagging
(LOCSET) and Stochastic Parallel Gradient Descent (SPGD) algorithms, the main active …

Numerical simulation of the internal active phase-locking coherent beam combining system

K Jin, H Chang, J Long, R Su, Y Ma, P Zhou - Applied Optics, 2023 - opg.optica.org
As a promising way to realize high output power while maintaining high beam quality,
coherent beam combining (CBC) of fiber lasers has drawn much interest. Phase control is …

Numerical study of SPGD-based phase control of coherent beam combining under various turbulent atmospheric conditions

H Kim, J Na, Y Jeong - Korean Journal of Optics and Photonics, 2020 - koreascience.kr
In this paper, based on a stochastic parallel gradient descent (SPGD) algorithm we study
phase control of a coherent-beam-combining system under turbulent atmospheric …

Coherent combining of a fiber laser array via cascaded internal phase control technique

J Long, J Zhang, H Chang, Q Chang, Y Deng… - Chinese Optics …, 2023 - opg.optica.org
We experimentally demonstrated a cascaded internal phase control technique. A laser array
with 12 channels was divided into three sub-arrays and a stage array, and phases of the sub …

Distributed active phase-locking of an all-fiber structured laser array by a stochastic parallel gradient descent (SPGD) algorithm

H Chang, R Su, J Long, Q Chang, P Ma, Y Ma… - Optics …, 2022 - opg.optica.org
Coherent beam combining (CBC) of fiber laser array is a promising way to achieve high
output power. Phase control is one key point to implement CBC. Appropriate feedback …

Nested Loop Phase Control Algorithm for Hybrid Coherent Beam Combining: Simulation and Experimental Validation

V Sankar, CL Linslal, S Maji, MS Sooraj… - Frontiers in …, 2023 - opg.optica.org
Nested Loop Phase Control Algorithm for Hybrid Coherent Beam Combining: Simulation and
Experimental Validation Page 1 Nested Loop Phase Control Algorithm for Hybrid Coherent Beam …