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Optics Letters

Optics Letters


  • Vol. 30, Iss. 8 — Apr. 15, 2005
  • pp: 923–925

Double chirped-pulse-amplification laser: a way to clean pulses temporally

M. P. Kalashnikov, E. Risse, H. Schönnagel, and W. Sandner  »View Author Affiliations

Optics Letters, Vol. 30, Issue 8, pp. 923-925 (2005)

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We demonstrate a double chirped-pulse-amplification (CPA) Ti:sapphire laser system that includes two CPA stages with intermediate nonlinear temporal pulse filtering. The method makes it possible to reduce substantially the background of amplified spontaneous emission (ASE), including prepulses and postpulses. An ASE temporal contrast of 10^10 was demonstrated at 20 mJ of output energy and 50-fs pulse duration. The demonstrated scheme is applicable to petawatt power-level laser systems.

© 2005 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5520) Ultrafast optics : Pulse compression
(320.7100) Ultrafast optics : Ultrafast measurements

M. P. Kalashnikov, E. Risse, H. Schönnagel, and W. Sandner, "Double chirped-pulse-amplification laser: a way to clean pulses temporally," Opt. Lett. 30, 923-925 (2005)

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