Abstract

We propose and demonstrate an analysis method to directly extract the group delay rather than the phase from the white-light spectral interferogram. By the joint time–frequency analysis technique, group delay is directly read from the ridge of wavelet transform, and group-delay dispersion is easily obtained by additional differentiation. The technique shows reasonable potential for the characterization of ultra-broadband chirped mirrors.

© 2008 Optical Society of America

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References

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2007 (1)

2006 (3)

2005 (4)

1990 (1)

Apolonski, A.

Brun, G.

Cao, S.

Y. Deng, Z. Wu, S. Cao, L. Chai, C. Wang, and Z. Zhang, Opt. Commun. 268, 1 (2006).
[CrossRef]

Chai, L.

Y. Deng, Z. Wu, S. Cao, L. Chai, C. Wang, and Z. Zhang, Opt. Commun. 268, 1 (2006).
[CrossRef]

Y. Deng, C. Wang, L. Chai, and Z. Zhang, Appl. Phys. B 81, 1107 (2005).
[CrossRef]

Y. Deng, Z. Wu, L. Chai, C. Wang, K. Yamane, R. Morita, M. Yamashita, and Z. Zhang, Opt. Express 13, 2120 (2005).
[CrossRef] [PubMed]

Deng, Y.

Y. Deng, Z. Wu, S. Cao, L. Chai, C. Wang, and Z. Zhang, Opt. Commun. 268, 1 (2006).
[CrossRef]

Y. Deng, C. Wang, L. Chai, and Z. Zhang, Appl. Phys. B 81, 1107 (2005).
[CrossRef]

Y. Deng, Z. Wu, L. Chai, C. Wang, K. Yamane, R. Morita, M. Yamashita, and Z. Zhang, Opt. Express 13, 2120 (2005).
[CrossRef] [PubMed]

Fleming, S.

Y. C. Zhao and S. Fleming, Meas. Sci. Technol. 16, 1628 (2005).
[CrossRef]

Gosteva, A.

Haiml, M.

Jacquot, M.

Keller, U.

Kim, D. Y.

Krausz, F.

Lee, J. Y.

Mogi, K.

Morita, R.

Naganuma, K.

Paschotta, R.

Pervak, V.

Reolon, D.

Veillas, C.

Verrier, I.

Wang, C.

Y. Deng, Z. Wu, S. Cao, L. Chai, C. Wang, and Z. Zhang, Opt. Commun. 268, 1 (2006).
[CrossRef]

Y. Deng, C. Wang, L. Chai, and Z. Zhang, Appl. Phys. B 81, 1107 (2005).
[CrossRef]

Y. Deng, Z. Wu, L. Chai, C. Wang, K. Yamane, R. Morita, M. Yamashita, and Z. Zhang, Opt. Express 13, 2120 (2005).
[CrossRef] [PubMed]

Wu, Z.

Yamada, H.

Yamane, K.

Yamashita, M.

Zhang, Z.

Y. Deng, Z. Wu, S. Cao, L. Chai, C. Wang, and Z. Zhang, Opt. Commun. 268, 1 (2006).
[CrossRef]

Y. Deng, C. Wang, L. Chai, and Z. Zhang, Appl. Phys. B 81, 1107 (2005).
[CrossRef]

Y. Deng, Z. Wu, L. Chai, C. Wang, K. Yamane, R. Morita, M. Yamashita, and Z. Zhang, Opt. Express 13, 2120 (2005).
[CrossRef] [PubMed]

Zhao, Y. C.

Y. C. Zhao and S. Fleming, Meas. Sci. Technol. 16, 1628 (2005).
[CrossRef]

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Figures (2)

Fig. 1
Fig. 1

GD and GDD extraction of fused silica. (a) Measured white-light spectral interferogram. (b) Wavelet transform of the spectral interferogram (amplitude topography). (c) Extracted GDs. (d) Extracted GDDs. WT, wavelet transform.

Fig. 2
Fig. 2

GD and GDD extraction of chirped mirror. (a) Measured spectral interferogram. (b) Wavelet transform and its ridge of the interferogram. (c) Extracted GDs. (d) Extracted GDDs.

Equations (2)

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φ ( ω ) = t ( ω ) d ω ,
GD = d φ ( ω ) d ω = t ( ω ) .

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