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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 16 — Jul. 30, 2012
  • pp: 17880–17893

Spatiotemporal characterization of few-cycle laser pulses

Benjamín Alonso, Miguel Miranda, Íñigo J. Sola, and Helder Crespo  »View Author Affiliations

Optics Express, Vol. 20, Issue 16, pp. 17880-17893 (2012)

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In this paper we apply a broadband fiber optic coupler interferometer to the measurement of few-cycle laser pulses. Sub-8-fs pulses delivered by an ultrafast oscillator were characterized spatiotemporally using STARFISH, which is based on spatially resolved spectral interferometry. The reference pulse was measured with the d-scan technique. The pulses were focused by an off-axis parabolic mirror and were characterized at different transverse planes along the focusing region. The evolution of the retrieved pulses is analyzed, exhibiting small variations in the temporal (and spectral) amplitude and phase during propagation. Finally, the peak irradiance evolution is estimated from the integration of the spatiotemporal intensity.

© 2012 OSA

OCIS Codes
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.5520) Ultrafast optics : Pulse compression
(320.7090) Ultrafast optics : Ultrafast lasers
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Ultrafast Optics

Original Manuscript: June 4, 2012
Revised Manuscript: July 13, 2012
Manuscript Accepted: July 16, 2012
Published: July 20, 2012

Benjamín Alonso, Miguel Miranda, Íñigo J. Sola, and Helder Crespo, "Spatiotemporal characterization of few-cycle laser pulses," Opt. Express 20, 17880-17893 (2012)

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