We demonstrate low-pump-power operation of a self-mode-locked Ti:sapphire laser. Stable, sub-20-fs duration pulses, with output powers of 35–100 mW, were obtained for pump powers in the range of 400 mW–1 W. Our design uses a tight focusing geometry for both the argon-ion and Ti:sapphire beams within the Ti:sapphire crystal, which significantly reduces the pump-power requirements.

© 1996 Optical Society of America

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1995 (2)

1994 (3)

1993 (2)

1991 (1)

Asaki, M.T.

Brabec, T.

Christov, I.

Christov, I. P.

Curley, P.

Garvey, D.

Hong, J.

Huang, C. P.

Kapteyn, H.

Kapteyn, H. C.

Kean, P. N.

Krausz, F.

Lamb, K.

Murnane, M.

Murnane, M. M.

Murnane, M.M.

Schmidt, A.

Sibbett, W.

Spence, D. E.

Spielmann, C.

Stoev, V.

Taft, G.

Wintner, E.

Yelland, C.

Zhou, J.

Zhou, J. P.

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Figures (3)

Fig. 1
Fig. 1

Schematic diagram of the laser.

Fig. 2
Fig. 2

(a) Output spectrum at 0.5-W pump power. The FWHM is 66 nm. (b) Autocorrelation trace of a 15-fs pulse (crosses); Fourier transform of the spectrum shown in (a) with a FWHM of 14.5 fs (dashed curve); fit to the data, with a FWHM of 16 fs (solid curve).

Fig. 3
Fig. 3

Stability regions as a function of input and output powers for output couplings of 3%, 6%, and 12%.