Abstract

A method for generation of the modified spectrum autointerferometric correlation that allows single-shot pulse characterization is demonstrated. A sensitive graphical representation of the ultrashort pulse phase quality is introduced that delineates the difference between the presence of temporal and spectral phase distortions. Using these schemes, full-field reconstruction of ultrashort laser pulses is obtained in real time using an efficient iterative technique.

© 2007 Optical Society of America

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References

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2006 (3)

2004 (1)

2002 (2)

2001 (1)

J. Chung and A. M. Weiner, IEEE J. Sel. Top. Quantum Electron. 7, 656 (2001).
[CrossRef]

1999 (1)

C. Iaconis and I. A. Walmsley, IEEE J. Quantum Electron. 35, 501 (1999).
[CrossRef]

1997 (1)

1993 (1)

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

1989 (1)

K. Naganuma, K. Modi, and H. Yamada, IEEE J. Quantum Electron. 25, 1225 (1989).
[CrossRef]

1985 (1)

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Figures (3)

Fig. 1
Fig. 1

MOSAIC traces obtained from (a) 85 fs Ti:sapphire laser and (b) intentionally chirping the laser pulse with 2 mm of ZnSe . MOSAIC rendered from an SHG spectral measurement (circles) and a second-order IAC (solid curve).

Fig. 2
Fig. 2

Simulation of H-MOSAIC for a pulse having a symmetric spectrum with (a) no dispersion, (b) GVD, (c) TOD, and (d) asymmetric spectrum with no dispersion. The dashed line indicates zero delay.

Fig. 3
Fig. 3

(a) Measured spectrum (solid curve) and retrieved phase (dashed curve) from the R-MOSAIC algorithm. The retrieved phase from an individual point line search is reproduced (dots). (b) Experimental H-MOSAIC (solid curve) and reconstructed H-MOSAIC (circles) from the phase (dots) and measured spectrum of (a).

Equations (3)

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g p ( τ ) = f ( t ) f ( t + τ ) e 2 i [ ϕ ( t ) ϕ ( t + τ ) ] d t ,
g p ( τ ) = F 1 ( E 2 ( Ω ) 2 ) ,
S H Y B ( τ ) = { g ( τ ) g T L ( τ ) for τ < 0 g ( τ ) g p ( τ ) for τ 0 .

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