Towards coherent combination of 61 fiber amplifiers

Anke Heilmann; Jérémy Le Dortz; Louis Daniault; Ihsan Fsaifes; Séverine Bellanger; Marie Antier; Jérôme Bourderionnet; Christian Larat; Eric Lallier; Eric Durand; Arnaud Brignon; Christophe Simon-Boisson; Jean Christophe Chanteloup

doi:10.1117/12.2287862

Towards coherent combination of 61 fiber amplifiers

Anke Heilmann
, Jérémy Le Dortz
, Louis Daniault
, Ihsan Fsaifes
, Séverine Bellanger
, Marie Antier
, Jérôme Bourderionnet
, Christian Larat
, Eric Lallier
, Eric Durand
, Arnaud Brignon
, Christophe Simon-Boisson
, Jean Christophe Chanteloup

Université Paris-Saclay
Thales Research & Technology
Laser Solutions Unit

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

Abstract

The XCAN project aims at the coherent combination of 61 fiber amplifiers in the femtosecond regime. An important intermediate step towards this goal is the implementation of a seven fiber test setup, which allows to address key scientific and technical challenges which might occur in the scaled version of 61 fibers. This work includes the design and characterization of a support unit able to hold 61 fibers with the high precision required for an efficient coherent combination in tiled aperture configuration. This configuration, in combination with an interferometric phase measurement and active phase control, is particularly well suited for the coherent combination of a very large number of beams. Our first preliminary results with seven fibers include a combination efficiency of 30 % and a residual phase error between two fibers as low as λ/40 rms. Experiments conducted with three fibers in order to evaluate technical improvements revealed an increase of efficiency to 54 %. The combined beam was temporally compressed to 225 fs, which is Fourier transform limited with respect to the measured spectrum.

Original language	English
Title of host publication	Fiber Lasers XV
Subtitle of host publication	Technology and Systems
Editors	Ingmar Hartl, Adrian L. Carter
Publisher	SPIE
ISBN (Electronic)	9781510615090
DOIs	https://doi.org/10.1117/12.2287862
Publication status	Published - 1 Jan 2018
Externally published	Yes
Event	Fiber Lasers XV: Technology and Systems 2018 - San Francisco, United States Duration: 29 Jan 2018 → 1 Feb 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10512
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Fiber Lasers XV: Technology and Systems 2018
Country/Territory	United States
City	San Francisco
Period	29/01/18 → 1/02/18

Keywords

Coherent Beam Combining
Femtosecond Lasers
Fiber Lasers

Access to Document

10.1117/12.2287862

Cite this

Heilmann, A., Le Dortz, J., Daniault, L., Fsaifes, I., Bellanger, S., Antier, M., Bourderionnet, J., Larat, C., Lallier, E., Durand, E., Brignon, A., Simon-Boisson, C., & Chanteloup, J. C. (2018). Towards coherent combination of 61 fiber amplifiers. In I. Hartl, & A. L. Carter (Eds.), Fiber Lasers XV: Technology and Systems Article 105120B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10512). SPIE. https://doi.org/10.1117/12.2287862

@inproceedings{895a5cd92859437aa64619ea080e3147,

title = "Towards coherent combination of 61 fiber amplifiers",

abstract = "The XCAN project aims at the coherent combination of 61 fiber amplifiers in the femtosecond regime. An important intermediate step towards this goal is the implementation of a seven fiber test setup, which allows to address key scientific and technical challenges which might occur in the scaled version of 61 fibers. This work includes the design and characterization of a support unit able to hold 61 fibers with the high precision required for an efficient coherent combination in tiled aperture configuration. This configuration, in combination with an interferometric phase measurement and active phase control, is particularly well suited for the coherent combination of a very large number of beams. Our first preliminary results with seven fibers include a combination efficiency of 30 \% and a residual phase error between two fibers as low as λ/40 rms. Experiments conducted with three fibers in order to evaluate technical improvements revealed an increase of efficiency to 54 \%. The combined beam was temporally compressed to 225 fs, which is Fourier transform limited with respect to the measured spectrum.",

keywords = "Coherent Beam Combining, Femtosecond Lasers, Fiber Lasers",

author = "Anke Heilmann and \{Le Dortz\}, J{\'e}r{\'e}my and Louis Daniault and Ihsan Fsaifes and S{\'e}verine Bellanger and Marie Antier and J{\'e}r{\^o}me Bourderionnet and Christian Larat and Eric Lallier and Eric Durand and Arnaud Brignon and Christophe Simon-Boisson and Chanteloup, \{Jean Christophe\}",

note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Fiber Lasers XV: Technology and Systems 2018 ; Conference date: 29-01-2018 Through 01-02-2018",

year = "2018",

month = jan,

day = "1",

doi = "10.1117/12.2287862",

language = "English",

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

publisher = "SPIE",

editor = "Ingmar Hartl and Carter, \{Adrian L.\}",

booktitle = "Fiber Lasers XV",

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Heilmann, A, Le Dortz, J, Daniault, L, Fsaifes, I, Bellanger, S, Antier, M, Bourderionnet, J, Larat, C, Lallier, E, Durand, E, Brignon, A, Simon-Boisson, C & Chanteloup, JC 2018, Towards coherent combination of 61 fiber amplifiers. in I Hartl & AL Carter (eds), Fiber Lasers XV: Technology and Systems., 105120B, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10512, SPIE, Fiber Lasers XV: Technology and Systems 2018, San Francisco, United States, 29/01/18. https://doi.org/10.1117/12.2287862

Towards coherent combination of 61 fiber amplifiers. / Heilmann, Anke; Le Dortz, Jérémy; Daniault, Louis et al.
Fiber Lasers XV: Technology and Systems. ed. / Ingmar Hartl; Adrian L. Carter. SPIE, 2018. 105120B (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10512).

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

TY - GEN

T1 - Towards coherent combination of 61 fiber amplifiers

AU - Heilmann, Anke

AU - Le Dortz, Jérémy

AU - Daniault, Louis

AU - Fsaifes, Ihsan

AU - Bellanger, Séverine

AU - Antier, Marie

AU - Bourderionnet, Jérôme

AU - Larat, Christian

AU - Lallier, Eric

AU - Durand, Eric

AU - Brignon, Arnaud

AU - Simon-Boisson, Christophe

AU - Chanteloup, Jean Christophe

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The XCAN project aims at the coherent combination of 61 fiber amplifiers in the femtosecond regime. An important intermediate step towards this goal is the implementation of a seven fiber test setup, which allows to address key scientific and technical challenges which might occur in the scaled version of 61 fibers. This work includes the design and characterization of a support unit able to hold 61 fibers with the high precision required for an efficient coherent combination in tiled aperture configuration. This configuration, in combination with an interferometric phase measurement and active phase control, is particularly well suited for the coherent combination of a very large number of beams. Our first preliminary results with seven fibers include a combination efficiency of 30 % and a residual phase error between two fibers as low as λ/40 rms. Experiments conducted with three fibers in order to evaluate technical improvements revealed an increase of efficiency to 54 %. The combined beam was temporally compressed to 225 fs, which is Fourier transform limited with respect to the measured spectrum.

AB - The XCAN project aims at the coherent combination of 61 fiber amplifiers in the femtosecond regime. An important intermediate step towards this goal is the implementation of a seven fiber test setup, which allows to address key scientific and technical challenges which might occur in the scaled version of 61 fibers. This work includes the design and characterization of a support unit able to hold 61 fibers with the high precision required for an efficient coherent combination in tiled aperture configuration. This configuration, in combination with an interferometric phase measurement and active phase control, is particularly well suited for the coherent combination of a very large number of beams. Our first preliminary results with seven fibers include a combination efficiency of 30 % and a residual phase error between two fibers as low as λ/40 rms. Experiments conducted with three fibers in order to evaluate technical improvements revealed an increase of efficiency to 54 %. The combined beam was temporally compressed to 225 fs, which is Fourier transform limited with respect to the measured spectrum.

KW - Coherent Beam Combining

KW - Femtosecond Lasers

KW - Fiber Lasers

U2 - 10.1117/12.2287862

DO - 10.1117/12.2287862

M3 - Conference contribution

AN - SCOPUS:85045672392

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

BT - Fiber Lasers XV

A2 - Hartl, Ingmar

A2 - Carter, Adrian L.

PB - SPIE

T2 - Fiber Lasers XV: Technology and Systems 2018

Y2 - 29 January 2018 through 1 February 2018

ER -

Towards coherent combination of 61 fiber amplifiers

Abstract

Publication series

Conference

Keywords

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