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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25379–25387

Basic considerations on coherent combining of ultrashort laser pulses

Arno Klenke, Enrico Seise, Jens Limpert, and Andreas Tünnermann  »View Author Affiliations


Optics Express, Vol. 19, Issue 25, pp. 25379-25387 (2011)
http://dx.doi.org/10.1364/OE.19.025379


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Abstract

Coherent combining is a novel approach to scale the performance of laser amplifiers. The use of ultrashort pulses in a coherent combining setup results in new challenges compared to continuous wave operation or to pulses on the nanosecond timescale, because temporal and spectral effects such as self-phase modulation, dispersion and the optical path length difference between the pulses have to be considered. In this paper the impact of these effects on the combining process has been investigated and simple analytical equations for the evaluation of this impact have been obtained. These formulas provide design guidelines for laser systems using coherent combining. The results show that, in spite of the temporal and spectral effects mentioned above, for a carefully adjusted and stabilized system an excellent efficiency of the combining process can still be achieved.

© 2011 OSA

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 18, 2011
Revised Manuscript: September 23, 2011
Manuscript Accepted: November 18, 2011
Published: November 28, 2011

Citation
Arno Klenke, Enrico Seise, Jens Limpert, and Andreas Tünnermann, "Basic considerations on coherent combining of ultrashort laser pulses," Opt. Express 19, 25379-25387 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-25-25379


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References

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