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Optics Letters

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  • Vol. 36, Iss. 20 — Oct. 15, 2011
  • pp: 4023–4025

Passive coherent beam combining of two femtosecond fiber chirped-pulse amplifiers

Louis Daniault, Marc Hanna, Dimitris N. Papadopoulos, Yoann Zaouter, Eric Mottay, Frédéric Druon, and Patrick Georges  »View Author Affiliations


Optics Letters, Vol. 36, Issue 20, pp. 4023-4025 (2011)
http://dx.doi.org/10.1364/OL.36.004023


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Abstract

We propose and demonstrate an architecture that achieves passive coherent combination of two femtosecond fiber chirped-pulse amplifiers. The setup consists in the use of a well-balanced amplifying Sagnac interferometer. The experiment shows that the temporal, spectral, and spatial qualities of each beam are retained, with the generation of 250 fs pulses at 35 MHz repetition rate, an uncompressed average power of 10 W , and a combining efficiency of 96%. The behavior of this architecture in the presence of high accumulated nonlinear phase is investigated.

© 2011 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 13, 2011
Revised Manuscript: August 30, 2011
Manuscript Accepted: September 14, 2011
Published: October 7, 2011

Citation
Louis Daniault, Marc Hanna, Dimitris N. Papadopoulos, Yoann Zaouter, Eric Mottay, Frédéric Druon, and Patrick Georges, "Passive coherent beam combining of two femtosecond fiber chirped-pulse amplifiers," Opt. Lett. 36, 4023-4025 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-20-4023


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