Abstract

We measure the spectral phase of femtosecond optical pulses using a time–frequency analog of Young’s double-slit interference. A pair of narrow slits in an opaque sheet selects two spectral frequencies from the femtosecond pulse spectrum in a zero-dispersion pulse stretcher. Measurement of the temporal phase of a family of beat frequencies obtained over a range of slit spacings yields the desired spectral phase directly. We demonstrate this technique by accurately measuring the quadratic phase added to 80-fs optical pulses by a 6.5-cm block of BK-7 glass.

© 1995 Optical Society of America

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References

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  1. D. J. Kane, R. Trebino, IEEE J. Quantum Electron. 29, 571 (1993).
    [CrossRef]
  2. R. Trebino, D. J. Kane, J. Opt. Soc. Am. A 10, 1101 (1993).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  5. R. L. Fork, C. H. Brito Cruz, P. C. Becker, C. V. Shank, Opt. Lett. 12, 483 (1987).
    [CrossRef] [PubMed]
  6. A. M. Weiner, J. P. Heritage, Rev. Phys. Appl. 22, 1619 (1987).
    [CrossRef]
  7. J. P. Heritage, A. M. Weiner, R. N. Thurston, in Ultrafast Phenomena V (Springer-Verlag, Berlin, 1986), p. 34.
  8. A. Sullivan, W. E. White, Opt. Lett. 20, 192 (1995).
    [CrossRef] [PubMed]

1995

1993

1991

1987

Becker, P. C.

Brito Cruz, C. H.

Chilla, J. L. A.

Fork, R. L.

Fujimoto, J. G.

Heritage, J. P.

A. M. Weiner, J. P. Heritage, Rev. Phys. Appl. 22, 1619 (1987).
[CrossRef]

J. P. Heritage, A. M. Weiner, R. N. Thurston, in Ultrafast Phenomena V (Springer-Verlag, Berlin, 1986), p. 34.

Ippen, E. P.

Kane, D. J.

R. Trebino, D. J. Kane, J. Opt. Soc. Am. A 10, 1101 (1993).
[CrossRef]

D. J. Kane, R. Trebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

Martinez, O. E.

Paye, J.

Ramaswamy, M.

Shank, C. V.

Sullivan, A.

Thurston, R. N.

J. P. Heritage, A. M. Weiner, R. N. Thurston, in Ultrafast Phenomena V (Springer-Verlag, Berlin, 1986), p. 34.

Trebino, R.

D. J. Kane, R. Trebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

R. Trebino, D. J. Kane, J. Opt. Soc. Am. A 10, 1101 (1993).
[CrossRef]

Weiner, A. M.

A. M. Weiner, J. P. Heritage, Rev. Phys. Appl. 22, 1619 (1987).
[CrossRef]

J. P. Heritage, A. M. Weiner, R. N. Thurston, in Ultrafast Phenomena V (Springer-Verlag, Berlin, 1986), p. 34.

White, W. E.

IEEE J. Quantum Electron.

D. J. Kane, R. Trebino, IEEE J. Quantum Electron. 29, 571 (1993).
[CrossRef]

J. Opt. Soc. Am. A

Opt. Lett.

Rev. Phys. Appl.

A. M. Weiner, J. P. Heritage, Rev. Phys. Appl. 22, 1619 (1987).
[CrossRef]

Other

J. P. Heritage, A. M. Weiner, R. N. Thurston, in Ultrafast Phenomena V (Springer-Verlag, Berlin, 1986), p. 34.

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Figures (3)

Fig. 1
Fig. 1

Schematic of the experimental arrangement, showing a detail of the adjustable dual slit and the location of the test glass block for the multiple-pass measurements of Fig. 3. We use a movable opaque shield, indicated by the dark shading of one slit, to select a single pair of slits.

Fig. 2
Fig. 2

Measured temporal beats for the lower-frequency (Δν < 0) sequence of double-slit spacings for a triple pass through a 6.5-cm-long block of BK7. The solid vertical line indicates zero time delay. The dashed vertical line marks the delay of the interference peaks. Another set (not shown) is obtained for the upper frequencies (Δν > 0).

Fig. 3
Fig. 3

Spectral phase change as a function of frequency deviation for the pulse stretcher alone [curve (a)] and 6.5 cm [curve (b)], 13 cm [curve (c)], and 19.5 cm [curve (d)] of BK7 glass.

Equations (1)

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I ( t ) sin 2 ( δ ω t / 2 ) ( δ ω t / 2 ) 2 cos 2 ( Δ ω t + Δ ϕ 2 ) ,

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