Abstract

We study and demonstrate a version of spectral phase interferometry for direct electric-field reconstruction (SPIDER) that uses self-referencing homodyne detection. This technique has a higher sensitivity than conventional SPIDER, is self-calibrating, and can be adjusted for a wider range of pulse parameters.

© 2001 Optical Society of America

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References

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2000 (1)

1999 (1)

1998 (1)

1996 (2)

1995 (1)

Belabas, N.

Bowie, J. L.

Chériaux, G.

Delong, K. W.

Dorrer, C.

Fittinghoff, D. N.

Iaconis, C.

Jennings, R. T.

Joffre, M.

Krumbugel, M. A.

Lepetit, L.

Likforman, J. P.

Sweetser, J. N.

Trebino, R.

Walmsley, I.

Walmsley, I. A.

Wong, V.

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Figures (4)

Fig. 1
Fig. 1

Principle of operation of (a) SPIDER and (b) HOT SPIDER. In SPIDER, two replicas of the pulse delayed by τ interact with the chirped pulse, and one measures the phase difference between the two converted replicas. In HOT SPIDER, a single replica interacts with the chirped pulse, which is delayed by τ between the first and the second measurements. At each of these steps, the same homodyne pulse is added, and the phase difference between H and the converted replica is measured.

Fig. 2
Fig. 2

Spectra and phases retrieved by SPIDER and HOT SPIDER at 2.5 and 0.25  mW.

Fig. 3
Fig. 3

Interferometric component E˜S1ωE˜S2ω in SPIDER (solid curve) and E˜HωE˜Sω in HOT SPIDER (dashed curve) at 0.25  mW.

Fig. 4
Fig. 4

Measured temporal intensities at 2.5  mW with SPIDER (curve) and HOT SPIDER (squares).

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