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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 6 — Mar. 15, 2006
  • pp: 787–789

Optical switching and contrast enhancement in intense laser systems by cascaded optical parametric amplification

Igor Jovanovic, C. P.J. Barty, Constantin Haefner, and Benoit Wattellier  »View Author Affiliations


Optics Letters, Vol. 31, Issue 6, pp. 787-789 (2006)
http://dx.doi.org/10.1364/OL.31.000787


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Abstract

Optical parametric chirped-pulse amplification (OPCPA) can be used to improve the prepulse contrast in chirped-pulse amplification systems by amplifying the main pulse with a total saturated OPCPA gain, while not affecting the preceding prepulses of the seed oscillator mode-locked pulse train. We show that a simple modification of a multistage OPCPA system into a cascaded optical parametric amplifier (COPA) results in an optical switch and extreme contrast enhancement that can completely eliminate the preceding and trailing oscillator pulses. Instrument-limited measurement of a prepulse contrast ratio of 1.4 × 10 11 is demonstrated from COPA at a 30 mJ level.

© 2006 Optical Society of America

OCIS Codes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 13, 2005
Manuscript Accepted: November 2, 2005

Citation
Igor Jovanovic, C. P. J. Barty, Constantin Haefner, and Benoit Wattellier, "Optical switching and contrast enhancement in intense laser systems by cascaded optical parametric amplification," Opt. Lett. 31, 787-789 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-6-787


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References

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