Abstract

We demonstrate the feasibility of the compression of tunable pulses by means of sum-frequency generation under special group-velocity mismatch conditions. β-Barium borate crystal has been shown to support the upconversion process, resulting in 160-fs pulses tunable within 600–720 nm when mixing 1.3-ps 1055-nm pulses from a Nd:glass laser with 0.95-ps pulses tunable within 1400–2200 nm from a traveling-wave parametric generator. A similar compression of ~150-fs Ti:sapphire pulses predicted for the sum-frequency tuning range of 520–590 nm.

© 1996 Optical Society of America

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References

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1995 (2)

1994 (2)

1993 (2)

P. Heinz, A. Laubereau, A. Dubietis, A. Piskarskas, Lithuanian J. Phys. 33, 314 (1993).

R. Danielius, A. Piskarskas, A. Stabinis, G. P. Banfi, P. Di Trapani, R. Righini, J. Opt. Soc. Am. B 10, 2222 (1993).
[CrossRef]

1992 (1)

1991 (1)

A. Stabinis, G. Valiulis, E. A. Ibragimov, Opt. Commun. 86, 301 (1991).
[CrossRef]

Banfi, G. P.

Bayanov, I. M.

I. M. Bayanov, R. Danielius, P. Heinz, A. Seilmeier, Opt. Commun. 113, 99 (1994).
[CrossRef]

Chien, C. Y.

Coe, J. S.

Craxton, R. S.

Danielius, R.

De Silvestri, S.

Di Trapani, P.

Dmitriev, V. G.

V. G. Dmitriev, G. G. Gurzadyan, D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, Berlin, 1991).

Dubietis, A.

R. Danielius, A. Dubietis, G. Valiulis, A. Piskarskas, Opt. Lett. 20, 2225 (1995).
[CrossRef] [PubMed]

P. Heinz, A. Laubereau, A. Dubietis, A. Piskarskas, Lithuanian J. Phys. 33, 314 (1993).

Gurzadyan, G. G.

V. G. Dmitriev, G. G. Gurzadyan, D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, Berlin, 1991).

Heinz, P.

I. M. Bayanov, R. Danielius, P. Heinz, A. Seilmeier, Opt. Commun. 113, 99 (1994).
[CrossRef]

P. Heinz, A. Laubereau, A. Dubietis, A. Piskarskas, Lithuanian J. Phys. 33, 314 (1993).

Ibragimov, E. A.

A. Stabinis, G. Valiulis, E. A. Ibragimov, Opt. Commun. 86, 301 (1991).
[CrossRef]

Korn, G.

Laubereau, A.

P. Heinz, A. Laubereau, A. Dubietis, A. Piskarskas, Lithuanian J. Phys. 33, 314 (1993).

Luther-Davies, B.

Magni, V.

Mourou, G.

Nikogosyan, D. N.

V. G. Dmitriev, G. G. Gurzadyan, D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, Berlin, 1991).

Nisoli, M.

Piskarskas, A.

Righini, R.

Seilmeier, A.

I. M. Bayanov, R. Danielius, P. Heinz, A. Seilmeier, Opt. Commun. 113, 99 (1994).
[CrossRef]

Squier, J.

Stabinis, A.

Svelto, O.

Valiulis, G.

Varanavicius, A.

Wang, Y.

J. Opt. Soc. Am. B (1)

Lithuanian J. Phys. (1)

P. Heinz, A. Laubereau, A. Dubietis, A. Piskarskas, Lithuanian J. Phys. 33, 314 (1993).

Opt. Commun. (2)

I. M. Bayanov, R. Danielius, P. Heinz, A. Seilmeier, Opt. Commun. 113, 99 (1994).
[CrossRef]

A. Stabinis, G. Valiulis, E. A. Ibragimov, Opt. Commun. 86, 301 (1991).
[CrossRef]

Opt. Lett. (4)

Other (1)

V. G. Dmitriev, G. G. Gurzadyan, D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, Berlin, 1991).

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Figures (3)

Fig. 1
Fig. 1

(a) Group-velocity walk-off lengths of the Nd:glass fundamental pulse (1.3 ps, e polarization) and the TOPG idler pulse (0.95 ps, o polarization) in the BBO crystal. The dashed curve shows values of the parameter m. (b) Numerically simulated shape of the SF pulse at 645 nm.

Fig. 2
Fig. 2

(a), (b) Autocorrelation traces and (c), (d) spectra of the compressed SF pulses at 645 and 665 nm. The dashed curves show Gaussian fits for the measured data.

Fig. 3
Fig. 3

(a) Group-velocity walk-off lengths of the Ti:sapphire fundamental pulse (150 fs, e polarization) and the TOPG output pulse (150 fs, o polarization) in the BBO crystal. The dashed curve shows values of the parameter m. (b) Numerically simulated shape of the SF pulse at 558 nm (m = −1.17).

Equations (3)

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A 1 z + 1 u 1 A 1 t i 2 g 1 2 A 1 t 2 = i σ 1 A 2 * A 3 , A 2 z + 1 u 2 A 2 t i 2 g 2 2 A 2 t 2 = i σ 2 A 1 * A 3 , A 3 z + 1 u 3 A 3 t i 2 g 3 2 A 3 t 2 = i σ 3 A 1 A 2 ,
A 1 ( t ) | z = 0 = A 10 ( t + T 1 ) , A 2 ( t ) | z = 0 = A 20 ( t + T 2 ) , A 3 ( t ) | z = 0 = 0 ,
A j = a j 0 exp ( 2 ln 2 t 2 / τ j 0 2 ) .

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