Abstract

A new (to our knowledge) method for generating the modified spectrum autointerferometric correlation (MOSAIC) trace from the second-harmonic generation frequency-resolved optical gating (SHG FROG) dataset is shown. Examples are presented illustrating enhanced visual sensitivity, applicability, and complementary qualitative pulse characterization using SHG FROG.

© 2010 Optical Society of America

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References

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2009 (1)

Mesa Photonics, VideoFROG User’s Manual, Version 5.0 (2009).

2008 (1)

2007 (1)

2006 (1)

2002 (1)

2001 (1)

2000 (1)

R. Trebino, Frequency Resolved Optical Gating: The Measurement of Ultrashort Laser Pulses (Kluwer Academic, 2000).

1999 (1)

A. Baltuska, M. S. Pshenichnikov, and D. A. Wiersma, IEEE J. Quantum Electron. 35, 459 (1999).
[CrossRef]

1997 (1)

1994 (1)

Baltuska, A.

A. Baltuska, M. S. Pshenichnikov, and D. A. Wiersma, IEEE J. Quantum Electron. 35, 459 (1999).
[CrossRef]

Bender, D. A.

Delong, K. W.

Gu, X.

Hasselbeck, M. P.

Hirayama, T.

Hunter, J.

Kimmel, M.

Nicholson, J. W.

O’Shea, P.

Pshenichnikov, M. S.

A. Baltuska, M. S. Pshenichnikov, and D. A. Wiersma, IEEE J. Quantum Electron. 35, 459 (1999).
[CrossRef]

Sheik-Bahae, M.

Trebino, R.

White, W. E.

Wiersma, D. A.

A. Baltuska, M. S. Pshenichnikov, and D. A. Wiersma, IEEE J. Quantum Electron. 35, 459 (1999).
[CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Simulated SHG FROG traces from (a) an unchirped and (b) a chirped pulse. The insets show pulse in the time domain. Corresponding MOSAIC traces produced from the SHG FROG traces: (c) unchirped and (d) chirped. Note the SHG FROG traces appear identical; complementary MOSAIC traces reveal pulse chirp [shaded area in (d)] without the need for iterative reconstruction.

Fig. 2
Fig. 2

(a) Measured and (b) reconstructed SHG FROG traces. (c) Comparison of corresponding MOSAIC traces produced from the measured (curves) and reconstructed (dots) FROG datasets. The inset displays S MOSAIC ( τ ) on a log scale; measured, black curve; reconstructed, light curve.

Fig. 3
Fig. 3

(a) Measured SHG FROG trace containing a slight asymmetry from beam misalignment. The inset shows that the MOSAIC traces visually identify the asymmetry as a difference in peak heights. (b) Measured symmetric SHG FROG trace after symmetrizing the MOSAIC trace (inset). While the FROG traces appear identical, the retrieval error was reduced by nearly a factor of 2 when MOSAIC was used to optimize alignment prior to retrieval.

Equations (2)

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S MOSAIC ( τ ) = g ( τ ) | g p ( τ ) | ,
I FROG SHG ( ω , τ ) = | E ( t ) E ( t τ ) e i ω t d t | 2 ,

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