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Optics Letters

Optics Letters


  • Vol. 24, Iss. 8 — Apr. 15, 1999
  • pp: 569–571

Amplitude and phase characterization of weak blue ultrashort pulses by downconversion

S. Linden, J. Kuhl, and H. Giessen  »View Author Affiliations

Optics Letters, Vol. 24, Issue 8, pp. 569-571 (1999)

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We present difference-frequency generation cross-correlation frequency-resolved optical gating, a new method of characterizing the amplitude and phase of weak ultrashort pulses in the blue spectral region. The method uses the spectrally resolved downconversion signal of the blue pulse and a fully characterized reference pulse with a lower center frequency. The amplitude and phase of the blue test pulse are retrieved from the corresponding spectrogram and electric field of the reference pulse with an interactive Fourier-transform algorithm.

© 1999 Optical Society of America

OCIS Codes
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(300.6530) Spectroscopy : Spectroscopy, ultrafast
(320.7100) Ultrafast optics : Ultrafast measurements

S. Linden, J. Kuhl, and H. Giessen, "Amplitude and phase characterization of weak blue ultrashort pulses by downconversion," Opt. Lett. 24, 569-571 (1999)

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  16. A commercial version of our XFROG and DFG XFROG has meanwhile been included in the FROG package from Femtosoft Technologies (fsoft@wco.com).

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