Abstract

We report the generation and measurement of 804-nm pulses with durations as short as 20 fs and with peak powers as high as 500 kW from a regeneratively initiated, self-mode-locked Ti:sapphire laser. Pulse duration is shown to decrease, and spectral content to increase, as intracavity power is increased. Control of intracavity focusing and a high-modulation-depth, acousto-optic modulator allow the intracavity power to be maximized. Cavity cubic phase error is minimized by correct design and placement of a group-velocity-dispersion-compensating prism pair.

© 1992 Optical Society of America

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References

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1992 (4)

1991 (3)

1985 (1)

Baer, T.

J. D. Kafka, M. L. Watts, T. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Brabec, T.

Diels, J. M.

Evans, J. M.

Fontaine, J. J.

French, P. M. W.

Fujimoto, J. G.

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

Haus, H. A.

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

Huang, C. P.

Jacobson, A. G.

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

Jacobson, J. M.

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

Kafka, J. D.

J. D. Kafka, M. L. Watts, T. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Kapteyn, H. C.

Kean, P. N.

Krausz, F.

McIntosh, J. W.

McMichael, I. C.

Mogi, K.

Murnane, M. M.

Naganuma, K.

K. Naganuma, K. Mogi, Opt. Lett. 16, 738 (1991).
[Crossref] [PubMed]

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

Rizvi, N. H.

Rothenberg, J. E.

Schmidt, A. J.

Sibbett, W.

Simoni, F.

Sleat, W. E.

Spence, D. E.

Spielmann, Ch.

Taylor, J. R.

Watts, M. L.

J. D. Kafka, M. L. Watts, T. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), paper JMB3.

Wintner, E.

Appl. Opt. (1)

Opt. Lett. (7)

Other (3)

J. M. Jacobson, A. G. Jacobson, K. Naganuma, H. A. Haus, J. G. Fujimoto, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1992), paper CTuU2.

J. D. Kafka, M. L. Watts, T. Baer, in Digest of Conference on Lasers and Electro-Optics (Optical Society of America, Washington, D.C., 1991), paper JMB3.

M. J. Weber, ed., CRC Handbook of Laser Science and Technology (CRC Press, Boca Raton, Fla., 1986), Vol. 3, p. 193.

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Figures (6)

Fig. 1
Fig. 1

Schematic of the Ti:sapphire oscillator.

Fig. 2
Fig. 2

Round-trip cubic phase error versus the single-pass intraprism path length for a zero-GVD cavity containing 2 cm of sapphire.

Fig. 3
Fig. 3

Far-field beam profiles of the laser output: (a) cw, (b) mode locked.

Fig. 4
Fig. 4

Pulse spectrum and pulse duration at five intracavity powers. The output coupling is 10%.

Fig. 5
Fig. 5

Power spectrum of a short pulse. Inset: transform-limited temporal profile (FWHM = 20.2 fs) calculated from the spectrum.

Fig. 6
Fig. 6

Measured interferometric autocorrelation of a short pulse. Superimposed are the envelopes of the calculated interferometric autocorrelation of the transform-limited 20-fs pulse from Fig. 5.

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