Abstract

We obtained nearly transform-limited light pulses of 34 fs near 1.2 µm by pumping an optical parametric oscillator with a 2-mm-long KTP crystal by 26-fs pulses from a Ti:sapphire laser. The average power of the pulses that were obtained was greater than 50 mW, at an 80-MHz repetition rate. Attempts to downscale the pulse duration by decreasing the pump-pulse duration revealed remarkable limitations of the attainable pulse length for sub-30-fs pump pulses, in accordance with a recent theoretical study [J. Opt. Soc. Am. B 17, 741 (2000)].

© 2000 Optical Society of America

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2000

1999

A. Shirakawa, I. Sakane, M. Takasaka, and T. Kobayashi, Appl. Phys. Lett. 74, 2268 (1999).
[CrossRef]

1997

J. Hebling, H. Giessen, S. Linden, and J. Kuhl, Opt. Commun. 141, 229 (1997).
[CrossRef]

K. C. Burr, C. L. Tang, M. A. Arbore, and M. M. Fejer, Opt. Lett. 22, 1458 (1997).
[CrossRef]

1996

A. Shirakawa, H. W. Mao, and T. Kobayashi, Opt. Commun. 123, 121 (1996).
[CrossRef]

1995

1994

J. M. Dudley, D. T. Reid, M. Ebrahimzadeh, and W. Sibbett, Opt. Commun. 104, 419 (1994).
[CrossRef]

1993

1992

Arbore, M. A.

Burr, K. C.

Cavallari, M.

Cheng, L. K.

Driscoll, T. J.

Dudley, J. M.

J. M. Dudley, D. T. Reid, M. Ebrahimzadeh, and W. Sibbett, Opt. Commun. 104, 419 (1994).
[CrossRef]

Ebrahimzadeh, M.

J. M. Dudley, D. T. Reid, M. Ebrahimzadeh, and W. Sibbett, Opt. Commun. 104, 419 (1994).
[CrossRef]

Fejer, M. M.

Fu, Q.

Gale, G. M.

Giessen, H.

J. Hebling, H. Giessen, S. Linden, and J. Kuhl, Opt. Commun. 141, 229 (1997).
[CrossRef]

Hache, F.

Hebling, J.

Kobayashi, T.

A. Shirakawa, I. Sakane, M. Takasaka, and T. Kobayashi, Appl. Phys. Lett. 74, 2268 (1999).
[CrossRef]

A. Shirakawa, H. W. Mao, and T. Kobayashi, Opt. Commun. 123, 121 (1996).
[CrossRef]

Kuhl, J.

J. Hebling, H. Giessen, S. Linden, and J. Kuhl, Opt. Commun. 141, 229 (1997).
[CrossRef]

J. Hebling, E. J. Mayer, J. Kuhl, and R. Szipöcs, Opt. Lett. 20, 919 (1995).
[CrossRef] [PubMed]

Linden, S.

J. Hebling, H. Giessen, S. Linden, and J. Kuhl, Opt. Commun. 141, 229 (1997).
[CrossRef]

Mak, G.

Mao, H. W.

A. Shirakawa, H. W. Mao, and T. Kobayashi, Opt. Commun. 123, 121 (1996).
[CrossRef]

Mayer, E. J.

Pelouch, W. S.

Powers, P. E.

Reid, D. T.

J. M. Dudley, D. T. Reid, M. Ebrahimzadeh, and W. Sibbett, Opt. Commun. 104, 419 (1994).
[CrossRef]

Sakane, I.

A. Shirakawa, I. Sakane, M. Takasaka, and T. Kobayashi, Appl. Phys. Lett. 74, 2268 (1999).
[CrossRef]

Seres, J.

Shirakawa, A.

A. Shirakawa, I. Sakane, M. Takasaka, and T. Kobayashi, Appl. Phys. Lett. 74, 2268 (1999).
[CrossRef]

A. Shirakawa, H. W. Mao, and T. Kobayashi, Opt. Commun. 123, 121 (1996).
[CrossRef]

Sibbett, W.

J. M. Dudley, D. T. Reid, M. Ebrahimzadeh, and W. Sibbett, Opt. Commun. 104, 419 (1994).
[CrossRef]

Szipöcs, R.

Takasaka, M.

A. Shirakawa, I. Sakane, M. Takasaka, and T. Kobayashi, Appl. Phys. Lett. 74, 2268 (1999).
[CrossRef]

Tang, C. L.

van Driel, H. M.

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Figures (4)

Fig. 1
Fig. 1

Calculated dependence of the pump-energy threshold on pump-pulse duration for a KTP OPO.

Fig. 2
Fig. 2

OPO output efficiency versus Δtpump. Circles, experimental data; triangles, theoretical values.

Fig. 3
Fig. 3

Solid curve, measured autocorrelation of the OPO pulses. Dashed curve, fit assuming 34-fs-long pulses in the OPO cavity and subsequent broadening in the substrate of the output coupler and in the autocorrelator. Inset, OPO spectrum.

Fig. 4
Fig. 4

Dependence of a, OPO power and b, pulse duration on cavity-length mismatch ΔL. Experimental data for (solid curve) a 2-mm KTP crystal are compared with model calculations for (dashed curves) a 2-mm and (dotted curves) a 0.5-mm KTP.

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