Abstract

We report what is to our knowledge the first demonstration of a femtosecond optical parametric oscillator based on chirped-pulse frequency conversion in a long crystal of aperiodically poled potassium titanyl phosphate. The minimum pump threshold power was 15 mW, and a signal slope efficiency of 35% was achieved. Continuous tuning from 1190 to 1450 nm was obtained for an average pump power of 800 mW.

© 2003 Optical Society of America

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References

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  10. Data courtesy of M. Harper, Ultrafast Measurements Group, National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK.

2002 (2)

2000 (1)

1999 (1)

K. Fradkin, A. Arie, A. Skliar, and G. Rosenman, Appl. Phys. Lett. 74, 914 (1999).
[CrossRef]

1997 (4)

1982 (1)

S. Guha, F. Wu, and J. Falk, IEEE J. Quantum Electron. 18, 907 (1982).
[CrossRef]

Arbore, M. A.

Arie, A.

K. Fradkin, A. Arie, A. Skliar, and G. Rosenman, Appl. Phys. Lett. 74, 914 (1999).
[CrossRef]

Artigas, D.

Beddard, T.

Broderick, N. G. R.

Chou, M. H.

Ebrahimzadeh, M.

Falk, J.

S. Guha, F. Wu, and J. Falk, IEEE J. Quantum Electron. 18, 907 (1982).
[CrossRef]

Fejer, M. M.

Fradkin, K.

K. Fradkin, A. Arie, A. Skliar, and G. Rosenman, Appl. Phys. Lett. 74, 914 (1999).
[CrossRef]

Galvanauskas, A.

Guha, S.

S. Guha, F. Wu, and J. Falk, IEEE J. Quantum Electron. 18, 907 (1982).
[CrossRef]

Hanna, D. C.

Hartner, D.

Karlsson, H.

Laurell, F.

Malinowski, A.

Marco, O.

Nilsson, J.

O’Connor, M. V.

Penman, Z.

Price, J. H. V.

Reid, D. T.

Richardson, D. J.

Rosenman, G.

K. Fradkin, A. Arie, A. Skliar, and G. Rosenman, Appl. Phys. Lett. 74, 914 (1999).
[CrossRef]

Shepherd, D. P.

Sibbett, W.

Skliar, A.

K. Fradkin, A. Arie, A. Skliar, and G. Rosenman, Appl. Phys. Lett. 74, 914 (1999).
[CrossRef]

Watson, M. A.

Wu, F.

S. Guha, F. Wu, and J. Falk, IEEE J. Quantum Electron. 18, 907 (1982).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Schematic of the chirped-pulse OPO. Pulses leaving the Ti:sapphire laser pass initially above mirror M1 but after returning from the prism sequence are steered by M1 into the OPO. Mirrors M2 and M3 have radii of curvature 100 and 75 mm, respectively. Insets, relative synchronization between the pump and the signal pulses entering (top inset) and leaving (bottom inset) the crystal. L, lens; P1, P2, dispersing double prisms.

Fig. 2
Fig. 2

(a) Representative signal spectrum and (b) accompanying autocorrelation.

Fig. 3
Fig. 3

Tuning of the OPO signal wavelength as the cavity length was changed (symbols), and a quadratic fit to the data (solid curve).

Fig. 4
Fig. 4

(a) Signal slope efficiency plot and (b) corresponding maximum spectral pump depletion showing superimposed pump spectra with the OPO operating (lower trace) and not operating (upper trace).

Fig. 5
Fig. 5

Signal spectra across a portion of the OPO tuning range, illustrating narrowband (shorter wavelenghts) and broadband (longer wavelengths) operating regimes.

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