Abstract

We report the simultaneous generation of two collinear synchronous mode-locked pulse trains, with central wavelength separations of 60 to 80 nm, from a single-cavity mode-locked Ti:sapphire laser. Near-transform-limited pulses of duration 50 to 70 fs were generated at each wavelength, with jitter of less than 20 fs between the two-color pulses. These pulses were directly used to generate infrared pulses centered at 9 μm, by difference-frequency mixing in an AgGaS2 crystal.

© 1993 Optical Society of America

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References

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    [CrossRef]
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1992 (3)

1991 (2)

D. E. Spence, P. N. Kean, W. Sibbett, Opt. Lett. 16, 42 (1991).
[CrossRef] [PubMed]

S. G. Bartoshevich, I. V. Mikhnyuk, G. A. Skripko, I. G. Tarazevich, IEEE J. Quantum Electron. 27, 2234 (1991).
[CrossRef]

1987 (1)

1986 (1)

Bartoshevich, S. G.

S. G. Bartoshevich, I. V. Mikhnyuk, G. A. Skripko, I. G. Tarazevich, IEEE J. Quantum Electron. 27, 2234 (1991).
[CrossRef]

Becker, P. C.

Brito Cruz, C. H.

Fork, R. L.

Huang, C.-P.

Kapteyn, H. C.

Kean, P. N.

Knox, W. H.

McIntosh, J. W.

Mikhnyuk, I. V.

S. G. Bartoshevich, I. V. Mikhnyuk, G. A. Skripko, I. G. Tarazevich, IEEE J. Quantum Electron. 27, 2234 (1991).
[CrossRef]

Murnane, M. M.

Myers, J. F.

R. Scheps, J. F. Myers, IEEE Photon. Technol. Lett. 4, 1 (1992).
[CrossRef]

Scheps, R.

R. Scheps, J. F. Myers, IEEE Photon. Technol. Lett. 4, 1 (1992).
[CrossRef]

Shank, C. V.

Sibbett, W.

Skripko, G. A.

S. G. Bartoshevich, I. V. Mikhnyuk, G. A. Skripko, I. G. Tarazevich, IEEE J. Quantum Electron. 27, 2234 (1991).
[CrossRef]

Spence, D. E.

Tarazevich, I. G.

S. G. Bartoshevich, I. V. Mikhnyuk, G. A. Skripko, I. G. Tarazevich, IEEE J. Quantum Electron. 27, 2234 (1991).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Experimental arrangement: (a) Schematic of the single-cavity two-color femtosecond Ti:sapphire laser, with the double slit. (b) Prism pair arrangement for external chirp compensation and cross-correlation measurements (PMT, photomultiplier tube; SW, short wavelength; LW, long wavelength).

Fig. 2
Fig. 2

Spectrum of the dual-wavelength femtosecond Ti:sapphire laser.

Fig. 3
Fig. 3

Autocorrelation profiles of the two pulses compensated by a pair of prisms outside the cavity: (a) pulse centered at 774 nm, (b) pulse centered at 840 nm. SHG, second-harmonic generation.

Fig. 4
Fig. 4

Cross correlation between the two pulses centered at 774 and 840 nm obtained using the experimental arrangement shown in Fig. 1(b) and described in the text. SFG, sum-frequency generation.

Fig. 5
Fig. 5

Autocorrelation of the dual-wavelength pulse train.

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