Abstract

We present what is to our knowledge the first demonstration of a femtosecond optical parametric oscillator using the new nonlinear crystal KTiOAsO4 Powers of as much as 75 mW in the signal branch and as much as 100 mW in the idler branch were coupled out of the cavity. Pulse widths as short as 85 fs in the signal branch and 150 fs in the idler branch were measured. The potential of tuning out to ~5 μm in the idler branch is discussed.

© 1993 Optical Society of America

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References

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  1. W. S. Pelouch, P. E. Powers, C. L. Tang, Opt. Lett. 17, 1070 (1992).
    [Crossref] [PubMed]
  2. Q. Fu, G. Mak, H. M. van Driel, Opt. Lett. 17, 1006 (1992).
    [Crossref] [PubMed]
  3. R. J. Ellingson, C. L. Tang, Opt. Lett. 18, 438 (1993).
    [Crossref] [PubMed]
  4. L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
    [Crossref]
  5. E. S. Wachman, W. S. Pelouch, C. L. Tang, J. Appl. Phys. 70, 2893 (1992).
  6. D. C. Edelstein, “New sources and techniques for ultrafast laser spectroscopy,” Ph.D. dissertation (Cornell University, Ithaca, N.Y., 1990).
  7. F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
    [Crossref]

1993 (2)

R. J. Ellingson, C. L. Tang, Opt. Lett. 18, 438 (1993).
[Crossref] [PubMed]

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

1992 (3)

1986 (1)

F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
[Crossref]

Ahmed, F.

F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
[Crossref]

Belt, R. F.

F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
[Crossref]

Bierlein, J. D.

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

Cheng, L. K.

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

Cheng, L.-T.

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

Edelstein, D. C.

D. C. Edelstein, “New sources and techniques for ultrafast laser spectroscopy,” Ph.D. dissertation (Cornell University, Ithaca, N.Y., 1990).

Ellingson, R. J.

Fu, Q.

Gashurov, G.

F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
[Crossref]

Mak, G.

Pelouch, W. S.

W. S. Pelouch, P. E. Powers, C. L. Tang, Opt. Lett. 17, 1070 (1992).
[Crossref] [PubMed]

E. S. Wachman, W. S. Pelouch, C. L. Tang, J. Appl. Phys. 70, 2893 (1992).

Powers, P. E.

Tang, C. L.

van Driel, H. M.

Wachman, E. S.

E. S. Wachman, W. S. Pelouch, C. L. Tang, J. Appl. Phys. 70, 2893 (1992).

Zumsteg, F. C.

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

Appl. Phys. Lett. (1)

L. K. Cheng, L.-T. Cheng, J. D. Bierlein, F. C. Zumsteg, Appl. Phys. Lett. 62, 346 (1993).
[Crossref]

J. Appl. Phys. (2)

E. S. Wachman, W. S. Pelouch, C. L. Tang, J. Appl. Phys. 70, 2893 (1992).

F. Ahmed, R. F. Belt, G. Gashurov, J. Appl. Phys. 60, 839 (1986).
[Crossref]

Opt. Lett. (3)

Other (1)

D. C. Edelstein, “New sources and techniques for ultrafast laser spectroscopy,” Ph.D. dissertation (Cornell University, Ithaca, N.Y., 1990).

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Figures (4)

Fig. 1
Fig. 1

Schematic of a Ti:sapphire-pumped femtosecond KTA OPO, with the inset showing the directions of kp, ks, and ki with respect to the crystal axes x, y, and z. The cavity and crystal are aligned such that the Ti:sapphire pump (P) is an o wave, the resonated signal (S) is an e wave, and the nonresonated idler (I) is an o wave. The polarization direction for the o waves is along y, and the polarization direction of the e wave is in the xz plane.

Fig. 2
Fig. 2

Tuning curve for a type II interaction in KTA with a noncollinear angle of 2.0°. A tuning curve is generated for three pump wavelengths that cover a large part of the Ti:sapphire laser range.

Fig. 3
Fig. 3

Spectra of (a) the signal and (b) the idler pulses. This tuning range represents a small portion of the tuning range for the KTA OPO.

Fig. 4
Fig. 4

Intensity autocorrelation of a 183-fs idler pulse at 1.77 μm. The inset shows the interferometric autocorrelation.

Equations (1)

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d eff = d 24 sin θ .

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