Abstract

We describe a cross-correlation-based frequency-resolved optical gating (XFROG) technique for simultaneously measuring the amplitude and phase of two ultrashort pulses that have different wavelengths but are derived from a common mode-locked oscillator. A measurement is presented in which 4.0µm mid-IR pulses from a synchronously pumped femtosecond optical parametric oscillator (OPO) are characterized by mixing with the 770-nm OPO pump pulses. Details of the pulse-retrieval algorithm are included, together with examples of pulse data retrieved from the experimentally measured XFROG trace.

© 2000 Optical Society of America

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References

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  1. K. W. DeLong, R. Trebino, and W. E. White, J. Opt. Soc. Am. B 12, 2463 (1995).
    [CrossRef]
  2. H. Giessen, Department of Physics, Phillips-University, Renthof 5, D-35032, Marburg, Germany (personal communication, May2000).
  3. S. Linden, J. Kuhl, and H. Giessen, Opt. Lett. 24, 569 (1999).
    [CrossRef]
  4. S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
    [CrossRef]
  5. B. A. Richman, M. A. Krumbugel, and R. Trebino, Opt. Lett. 22, 721 (1997).
    [CrossRef] [PubMed]
  6. Spectragen, Inc., 1700 South Mount Prospect Road, Des Plaines, Ill. 60018.
  7. D. J. Kane, IEEE J. Sel. Topics Quantum Electron. 4, 278 (1998).
    [CrossRef]
  8. D. J. Kane, G. Rodgriguez, A. J. Taylor, and T. S. Clement, J. Opt. Soc. Am. B 14, 935 (1997).
    [CrossRef]
  9. D. T. Reid, W. Sibbett, J. M. Dudley, L. P. Barry, B. Thomsen, and J. D. Harvey, Appl. Opt. 37, 8142 (1998).
    [CrossRef]

1999

1998

S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
[CrossRef]

D. J. Kane, IEEE J. Sel. Topics Quantum Electron. 4, 278 (1998).
[CrossRef]

D. T. Reid, W. Sibbett, J. M. Dudley, L. P. Barry, B. Thomsen, and J. D. Harvey, Appl. Opt. 37, 8142 (1998).
[CrossRef]

1997

1995

Barry, L. P.

Clement, T. S.

DeLong, K. W.

Dudley, J. M.

Giessen, H.

S. Linden, J. Kuhl, and H. Giessen, Opt. Lett. 24, 569 (1999).
[CrossRef]

S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
[CrossRef]

H. Giessen, Department of Physics, Phillips-University, Renthof 5, D-35032, Marburg, Germany (personal communication, May2000).

Harvey, J. D.

Kane, D. J.

Krumbugel, M. A.

Kuhl, J.

S. Linden, J. Kuhl, and H. Giessen, Opt. Lett. 24, 569 (1999).
[CrossRef]

S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
[CrossRef]

Linden, S.

S. Linden, J. Kuhl, and H. Giessen, Opt. Lett. 24, 569 (1999).
[CrossRef]

S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
[CrossRef]

Reid, D. T.

Richman, B. A.

Rodgriguez, G.

Sibbett, W.

Taylor, A. J.

Thomsen, B.

Trebino, R.

White, W. E.

Appl. Opt.

IEEE J. Sel. Topics Quantum Electron.

D. J. Kane, IEEE J. Sel. Topics Quantum Electron. 4, 278 (1998).
[CrossRef]

J. Opt. Soc. Am. B

Opt. Lett.

Phys. Status Solidi B

S. Linden, H. Giessen, and J. Kuhl, Phys. Status Solidi B 206, 119 (1998).
[CrossRef]

Other

H. Giessen, Department of Physics, Phillips-University, Renthof 5, D-35032, Marburg, Germany (personal communication, May2000).

Spectragen, Inc., 1700 South Mount Prospect Road, Des Plaines, Ill. 60018.

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Figures (4)

Fig. 1
Fig. 1

Experimental configuration: The pump pulse is sampled at beam splitter A (uncoated 45° microscope slide) and, after a variable delay, is recombined with the OPO idler pulse at dichroic beam splitter B (high reflectivity at 800 nm, high transmission at 5000 nm). KNB, KNBO3; PPLN, periodically poled LiNbO3.

Fig. 2
Fig. 2

Normalized phase-matching efficiency, sinc2Δkl/2, as a function of angle of incidence on the 49°-cut KNBO3 crystal. Focusing results in a range of angles of incidence, Δθ, which increases the phase-matching bandwidth for the mixing process.

Fig. 3
Fig. 3

Flow diagram illustrating the principal-components generalized-projections algorithm used for retrieval of the measured XFROG traces.

Fig. 4
Fig. 4

(a) Measured and (c) retrieved XFROG traces for a pump at 771 nm and an idler at 4.0 µm. (b) Retrieved idler pulse intensity and phase with (inset) retrieved spectral data overlaid on the measured idler spectrum. (d) Retrieved pump-pulse intensity and phase with (inset) the retrieved pump spectral data overlaid on the measured pump spectrum.

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