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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 26 — Dec. 20, 2010
  • pp: 27827–27835

Coherent addition of fiber-amplified ultrashort laser pulses

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


Optics Express, Vol. 18, Issue 26, pp. 27827-27835 (2010)
http://dx.doi.org/10.1364/OE.18.027827


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Abstract

We report on a novel approach of performance scaling of ultra-fast lasers by means of coherent combination. Pulses from a single mode-locked laser are distributed to a number of spatially separated fiber amplifiers and coherently combined after amplification. Splitting and combination is achieved by polarization cubes, i.e. the approach bases on polarization combining. A Hänsch-Couillaud detector measures the polarization state at the output. The error signal (deviation from linear polarization) is used to stabilize the synchronization of different channels. In a proof-of-principle experiment the combination of two femtosecond fiber-based CPA systems is presented. A combining efficiency as high as 97% has been achieved. The technique offers a unique scaling potential and can be applied to all ultrafast amplification schemes independent of the architecture of the gain medium.

© 2010 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: October 8, 2010
Revised Manuscript: December 9, 2010
Manuscript Accepted: December 10, 2010
Published: December 17, 2010

Citation
Enrico Seise, Arno Klenke, Jens Limpert, and Andreas Tünnermann, "Coherent addition of fiber-amplified ultrashort laser pulses," Opt. Express 18, 27827-27835 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-26-27827


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