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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 13,
  • Issue 1,
  • pp. 158-165
  • (2009)

Characterization of Supercontinuum and Ultraviolet Pulses by Using XFROG

Open Access Open Access

Abstract

We present cross-correlation frequency-resolved optical gating (XFROG) measurements of supercontinuum pulses generated by using a photonic crystal fiber (PCF), and ultraviolet (UV) pulses generated by frequency doubling of infrared ultra-short pulses. Since supercontinuum pulses have broad spectra, XFROG measurement typically requires using an extremely thin nonlinear crystal which has a thickness of sub-ten microns. Instead of using such a thin crystal, we employed a relatively thick crystal which was mounted on a galvanometer in order to achieve a phase-matching over the whole spectral bandwidth of the supercontinuum pulses by a crystal-dithering technique. Experimental results of the retrieved phase and intensity were in fair agreement with the independently measured data.

© 2009 Optical Society of Korea

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