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Optics Letters

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  • Vol. 37, Iss. 13 — Jul. 1, 2012
  • pp: 2547–2549

High-power top-hat pulses from a Yb master oscillator power amplifier for efficient optical parametric amplifier pumping

T. Balčiūnas, G. Y. Fan, G. Andriukaitis, A. Pugžlys, and A. Baltuška  »View Author Affiliations


Optics Letters, Vol. 37, Issue 13, pp. 2547-2549 (2012)
http://dx.doi.org/10.1364/OL.37.002547


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Abstract

We demonstrate shaping of high-energy broadband Yb amplifier pulses for the generation of a (sub)picosecond top-hat temporal pulse profile that significantly improves pumping efficiency of an optical parametric amplifier (OPA). Phase-only modulation is applied by an acousto-optic programmable dispersion filter. This simple scheme is scalable to a high average power due to a relatively broad bandwidth of the Yb:CaF2 gain medium used in the amplifier that supports a sub-150-fs transform-limited pulse duration. Additionally we show that OPA seeding with supercontinuum remains possible because top-hat-shaped pulses passed through a glass block recompress to 200fs with minimum satellite production.

© 2012 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5540) Ultrafast optics : Pulse shaping

ToC Category:
Ultrafast Optics

History
Original Manuscript: February 20, 2012
Revised Manuscript: April 27, 2012
Manuscript Accepted: May 1, 2012
Published: June 21, 2012

Citation
T. Balčiūnas, G. Y. Fan, G. Andriukaitis, A. Pugžlys, and A. Baltuška, "High-power top-hat pulses from a Yb master oscillator power amplifier for efficient optical parametric amplifier pumping," Opt. Lett. 37, 2547-2549 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-13-2547


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