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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 4 — Feb. 15, 2012
  • pp: 650–652

Impact of spectral phase mismatch on femtosecond coherent beam combining systems

L. Daniault, M. Hanna, L. Lombard, Y. Zaouter, E. Mottay, D. Goular, P. Bourdon, F. Druon, and P. Georges  »View Author Affiliations


Optics Letters, Vol. 37, Issue 4, pp. 650-652 (2012)
http://dx.doi.org/10.1364/OL.37.000650


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Abstract

We experimentally investigate the impact of spectral phase mismatch on the coherent beam combining of two femtosecond fiber chirped-pulse amplifiers. By measuring the differential spectral phase, both linear and nonlinear contributions are identified. An accumulated nonlinear phase as high as 6 rad has been measured, for which a combination efficiency of 91% can be obtained by symmetrizing the pump and injection powers. This also allows us to quantitatively separate the spatial and temporal contributions of the nonperfect combining efficiency.

© 2012 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: October 7, 2011
Revised Manuscript: December 26, 2011
Manuscript Accepted: December 27, 2011
Published: February 13, 2012

Citation
L. Daniault, M. Hanna, L. Lombard, Y. Zaouter, E. Mottay, D. Goular, P. Bourdon, F. Druon, and P. Georges, "Impact of spectral phase mismatch on femtosecond coherent beam combining systems," Opt. Lett. 37, 650-652 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-650

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