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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 3,
  • Issue 1,
  • pp. 27-31
  • (1999)

Visible wavelength autocorrelation based on the two-photon absorption in a SiC photodiode

Open Access Open Access

Abstract

The two-photon absorption of a SiC photodiode was utilized to obtain autocorrelation signals of the pulses from a mode-locked Rh6G dye laser. The autocorrelation signals were in good agreement with those obtained by a conventional autocorrelator using a second harmonic crystal and photomultiplier tube. The sensitivity of the autocorrelator with the SiC photodiode was about <TEX>$4{\times}10^3 {(mW)}^2$</TEX> . From these results it was demonstrated that the SiC photodiode is suitable as a nonlinear device for an autocorrelation measurement in the visible range.

© 1999 Optical Society of Korea

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