Coherent beam combining of 61 femtosecond fiber amplifiers

Optics Express
Ihsan FsaifesJean-Christophe Chanteloup

Abstract

We report on the coherent beam combining of 61 femtosecond fiber chirped-pulse amplifiers in a tiled-aperture configuration along with an interferometric phase measurement technique. Relying on coherent beam recombination in the far field, this technique appears suitable for the combination of a large number of fiber amplifiers. The 61 output beams are stacked in a hexagonal arrangement and collimated through a high fill factor hexagonal micro-lens array. The residual phase error between two fibers is as low as λ/90 RMS, while a combining efficiency of ∼50% is achieved.

References

Sep 22, 2011·Optics Express·Jérome BourderionnetArnaud Brignon
Nov 1, 2017·Optics Letters·Tong ZhouRussell Wilcox
Jun 30, 2018·Optics Letters·Michael JenneStefan Nolte

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Citations

Dec 17, 2020·Optics Letters·Maike ProssotowiczUwe Morgner
Dec 29, 2020·Optics Letters·Matthieu VeinhardJean-Christophe Chanteloup
Jan 1, 2021·Optics Express·Albrecht SteinkopffJens Limpert
Mar 18, 2021·Optics Express·Qiang DuRussell Wilcox
Apr 2, 2021·Optics Letters·Maike ProssotowiczUwe Morgner
Jun 19, 2021·Applied Optics·Jan K JabczyńskiWaldemar Żendzian

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