Abstract

Details are presented of an implementation of second-harmonic generation frequency-resolved optical gating (SHG FROG), which allows real-time acquisition of the FROG trace from a femtosecond oscillator. A spinning mirror phase-locked to an autocorrelator is used to scan line-spectra of the correlation function across a CCD camera. The FROG trace is updated at around 20 Hz and displayed on a video monitor.

© 1997 Optical Society of America

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References

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  1. K. W. Delong et al., “Frequency-resolved optical gating with the use of second-harmonic generation,” J. Opt. Soc. Am. B 11, 2206–2215 (1994).
    [CrossRef]
  2. Y. Ishida et al., “Self-phase modulation in hybridly mode-locked CW dye lasers,” IEEE J. Quantum. Electron. 21, 69–77 (1985).
    [CrossRef]
  3. K.W. Delong, R. Trebino, “Improved ultrashort pulse-retrieval algorithm for frequency-resolved optical gating,” J. Opt. Soc. Am. A 11, 2429–2437 (1994).
    [CrossRef]
  4. D.T. Reid et al., “Compact, efficient 344-MHz repetition-rate femtosecond optical parametric oscillator,” Opt. Lett. 22, 525–527 (1997).
    [CrossRef] [PubMed]

1997 (1)

1994 (2)

1985 (1)

Y. Ishida et al., “Self-phase modulation in hybridly mode-locked CW dye lasers,” IEEE J. Quantum. Electron. 21, 69–77 (1985).
[CrossRef]

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Figures (3)

Figure 1
Figure 1

Real-time FROG trace acquisition system.

Figure 2
Figure 2

Experimentally recorded SHG FROG trace.

Figure 3
Figure 3

Retrieved intensity and phase of a femtosecond pulse from a Ti:sapphire laser. The results are presented in both the temporal and spectral domain.

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