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Coherent beam combining of two femtosecond fiber chirped-pulse amplifiers

Louis Daniault 1 Marc Hanna 1 Laurent Lombard 2 Yoann Zaouter 3 Eric Mottay 3 Didier Goular 2 Pierre Bourdon 2 Frédéric Druon 1 Patrick Georges 1
1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
LCFIO - Laboratoire Charles Fabry de l'Institut d'Optique
2 ONERA - The French Aerospace Lab [Châtillon]
3 Amplitude Systèmes
Abstract : We demonstrate coherent beam combining of two femtosecond fiber chirped-pulse amplifiers seeded by a common oscillator. Using a feedback loop based on an electro-optic phase modulator, an average power of 7:2W before compression is obtained with a combining efficiency of 90%. The spatial and temporal qualities of the oscillator are retained, with a recombined pulse width of 325 fs. This experiment opens up a way to scale the peak/average power of ultrafast fiber sources.
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https://hal.archives-ouvertes.fr/hal-00609851
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Submitted on : Wednesday, July 20, 2011 - 12:00:07 PM
Last modification on : Thursday, November 5, 2020 - 12:20:19 PM
Long-term archiving on: : Friday, October 21, 2011 - 2:21:44 AM

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  • HAL Id : hal-00609851, version 1

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CNRS | ONERA | LCFIO | IOGS | PARISTECH | LCF_LASERS | LCF_LASBIO

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Louis Daniault, Marc Hanna, Laurent Lombard, Yoann Zaouter, Eric Mottay, et al.. Coherent beam combining of two femtosecond fiber chirped-pulse amplifiers. Optics Letters, Optical Society of America - OSA Publishing, 2011, 36 (5), pp.621. ⟨hal-00609851⟩

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