Four-channel prototype using coherent combining of ultrashort laser pulses for dipole configuration approximation
Optics
2026-07-02 v1
Abstract
This paper presents a four-channel prototype system for the geometric combining and coherent addition of tightly focused femtosecond laser radiation into a standing-wave field configuration. A stabilization system for beam pointing and relative phase of the four optical channels has been implemented, and its performance has been experimentally demonstrated. To characterize the standing-wave electromagnetic field distribution at the main focus of the system, an original measurement technique based on a fiber subwavelength optical probe has been employed. This work has been conducted in support of the exawatt-scale XCELS project.
Cite
@article{arxiv.2607.02040,
title = {Four-channel prototype using coherent combining of ultrashort laser pulses for dipole configuration approximation},
author = {Konstantin Burdonov and Mikhail Zolotavin and Alexey Sidnev and Evgeny Blinov and Alexander Kotov and Sergey Perevalov and Artem Korzhimanov and Ivan Mukhin and Alexey Pestov and Mikhail Starodubtsev and Efim Khazanov and Andrey Shaykin and Alexander Soloviev},
journal= {arXiv preprint arXiv:2607.02040},
year = {2026}
}