High peak-power stretcher-free femtosecond fiber amplifier using passive spatio-temporal coherent combining | Zendy

Louis Daniault | Zendy; Marc Hanna | Zendy; Dimitris N. Papadopoulos | Zendy; Yoann Zaouter | Zendy; E. Mottay | Zendy; F. Druon | Zendy; Patrick Georges | Zendy

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High peak-power stretcher-free femtosecond fiber amplifier using passive spatio-temporal coherent combining

Author(s) -

Louis Daniault,

Marc Hanna,

Dimitris N. Papadopoulos,

Yoann Zaouter,

E. Mottay,

F. Druon,

Patrick Georges

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.021627

Subject(s) - optics , femtosecond , amplifier , materials science , interferometry , fiber laser , ytterbium , optical fiber , physics , laser , optoelectronics , cmos

We report on the passive coherent combining of up to 8 temporally and spatially separated ultrashort pulses amplified in a stretcher-free ytterbium-doped fiber system. An initial femtosecond pulse is split into 4 temporal replicas using divided-pulse amplification, and subsequently divided in two counter-propagating beams in a Sagnac interferometer containing a fiber amplifier. The spatio-temporal distribution of the peak-power inside the amplifier allows the generation of record 3.1 µJ and 50 fs pulses at 1 MHz of repetition rate with 52 MW of peak-power from a stretcher-free fiber amplifier and without additional nonlinear post-compression stages.

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