Coherent beam combining of 60 femtosecond fiber amplifiers

Ihsan Fsaifes; Louis Daniault; Séverine Bellanger; Matthieu Veinhard; Jérôme Bourderionnet; Christian Larat; Eric Lallier; Eric Durand; Arnaud Brignon; Jean Christophe Chanteloup

doi:10.1117/12.2545229

Coherent beam combining of 60 femtosecond fiber amplifiers

Ihsan Fsaifes
, Louis Daniault
, Séverine Bellanger
, Matthieu Veinhard
, Jérôme Bourderionnet
, Christian Larat
, Eric Lallier
, Eric Durand
, Arnaud Brignon
, Jean Christophe Chanteloup

Thales Research & Technology
Thales LAS France SAS

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beams recombination in the far field, this technique appears well suited for the combination of a large number of fiber amplifiers. The 60 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal microlens array. The measured residual errors within the fiber array yields standard deviations of 4.2 μm for the fiber pitch and 3.1 mrad for the beam-to-beam pointing, allowing a combining efficiency of 50 %. The phasing of 60 fiber amplifiers demonstrates both pulse synchronization and phase stabilization with a residual phase error as low as λ/100 RMS.

Original language	English
Title of host publication	Fiber Lasers XVII
Subtitle of host publication	Technology and Systems
Editors	Liang Dong
Publisher	SPIE
ISBN (Electronic)	9781510632837
DOIs	https://doi.org/10.1117/12.2545229
Publication status	Published - 1 Jan 2020
Event	Fiber Lasers XVII: Technology and Systems 2020 - San Francisco, United States Duration: 3 Feb 2020 → 6 Feb 2020

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11260
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Fiber Lasers XVII: Technology and Systems 2020
Country/Territory	United States
City	San Francisco
Period	3/02/20 → 6/02/20

Keywords

Coherent beam combining
Femtosecond lasers
Fiber lasers

Access to Document

10.1117/12.2545229

Cite this

Fsaifes, I., Daniault, L., Bellanger, S., Veinhard, M., Bourderionnet, J., Larat, C., Lallier, E., Durand, E., Brignon, A., & Chanteloup, J. C. (2020). Coherent beam combining of 60 femtosecond fiber amplifiers. In L. Dong (Ed.), Fiber Lasers XVII: Technology and Systems Article 112600L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11260). SPIE. https://doi.org/10.1117/12.2545229

@inproceedings{d42f40bc0e274aa999ed011844236c27,

title = "Coherent beam combining of 60 femtosecond fiber amplifiers",

abstract = "We report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beams recombination in the far field, this technique appears well suited for the combination of a large number of fiber amplifiers. The 60 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal microlens array. The measured residual errors within the fiber array yields standard deviations of 4.2 μm for the fiber pitch and 3.1 mrad for the beam-to-beam pointing, allowing a combining efficiency of 50 \%. The phasing of 60 fiber amplifiers demonstrates both pulse synchronization and phase stabilization with a residual phase error as low as λ/100 RMS.",

keywords = "Coherent beam combining, Femtosecond lasers, Fiber lasers",

author = "Ihsan Fsaifes and Louis Daniault and S{\'e}verine Bellanger and Matthieu Veinhard and J{\'e}r{\^o}me Bourderionnet and Christian Larat and Eric Lallier and Eric Durand and Arnaud Brignon and Chanteloup, \{Jean Christophe\}",

note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; Fiber Lasers XVII: Technology and Systems 2020 ; Conference date: 03-02-2020 Through 06-02-2020",

year = "2020",

month = jan,

day = "1",

doi = "10.1117/12.2545229",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Liang Dong",

booktitle = "Fiber Lasers XVII",

}

Fsaifes, I, Daniault, L, Bellanger, S, Veinhard, M, Bourderionnet, J, Larat, C, Lallier, E, Durand, E, Brignon, A & Chanteloup, JC 2020, Coherent beam combining of 60 femtosecond fiber amplifiers. in L Dong (ed.), Fiber Lasers XVII: Technology and Systems., 112600L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11260, SPIE, Fiber Lasers XVII: Technology and Systems 2020, San Francisco, United States, 3/02/20. https://doi.org/10.1117/12.2545229

Coherent beam combining of 60 femtosecond fiber amplifiers. / Fsaifes, Ihsan; Daniault, Louis; Bellanger, Séverine et al.
Fiber Lasers XVII: Technology and Systems. ed. / Liang Dong. SPIE, 2020. 112600L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11260).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Coherent beam combining of 60 femtosecond fiber amplifiers

AU - Fsaifes, Ihsan

AU - Daniault, Louis

AU - Bellanger, Séverine

AU - Veinhard, Matthieu

AU - Bourderionnet, Jérôme

AU - Larat, Christian

AU - Lallier, Eric

AU - Durand, Eric

AU - Brignon, Arnaud

AU - Chanteloup, Jean Christophe

PY - 2020/1/1

Y1 - 2020/1/1

N2 - We report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beams recombination in the far field, this technique appears well suited for the combination of a large number of fiber amplifiers. The 60 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal microlens array. The measured residual errors within the fiber array yields standard deviations of 4.2 μm for the fiber pitch and 3.1 mrad for the beam-to-beam pointing, allowing a combining efficiency of 50 %. The phasing of 60 fiber amplifiers demonstrates both pulse synchronization and phase stabilization with a residual phase error as low as λ/100 RMS.

AB - We report on the first coherent beam combining of 60 fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beams recombination in the far field, this technique appears well suited for the combination of a large number of fiber amplifiers. The 60 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal microlens array. The measured residual errors within the fiber array yields standard deviations of 4.2 μm for the fiber pitch and 3.1 mrad for the beam-to-beam pointing, allowing a combining efficiency of 50 %. The phasing of 60 fiber amplifiers demonstrates both pulse synchronization and phase stabilization with a residual phase error as low as λ/100 RMS.

KW - Coherent beam combining

KW - Femtosecond lasers

KW - Fiber lasers

U2 - 10.1117/12.2545229

DO - 10.1117/12.2545229

M3 - Conference contribution

AN - SCOPUS:85083702376

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Fiber Lasers XVII

A2 - Dong, Liang

PB - SPIE

T2 - Fiber Lasers XVII: Technology and Systems 2020

Y2 - 3 February 2020 through 6 February 2020

ER -

Coherent beam combining of 60 femtosecond fiber amplifiers

Abstract

Publication series

Conference

Keywords

Access to Document

Fingerprint

Cite this