Abstract

We describe a mechanism for pulse compression in a length-detuned synchronously pumped optical parametric oscillator. Our model shows that the compression is due to group-velocity walk-off combined with parametric gain depletion. We find excellent agreement between the results of our model and the experimentally observed behavior of our synchronously pumped optical parametric oscillator, including the prediction and the observation of as much as 20-fold compression. Using our model as a basis, we describe the possibilities and the limitations of this technique for generating broadly tunable femtosecond pulses.

© 1995 Optical Society of America

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  1. W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
    [Crossref]
  2. C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
    [Crossref]
  3. R. Danielius, A. Piskarskas, A. Stabinis, G. P. Banfi, P. Di Trapani, and R. Righini, “Traveling-wave parametric generation of widely tunable, highly coherent femtosecond light pulses,” J. Opt. Soc. Am. B 10, 2222 (1993).
    [Crossref]
  4. F. Seifert, V. Petrov, and F. Noack, “Sub-100-fs optical parametric generator pumped by a high-repetition-rate Ti:sapphire regenerative amplifier system,” Opt. Lett. 19, 837 (1994).
    [Crossref] [PubMed]
  5. E. S. Wachman, D. C. Edelstein, and C. L. Tang, “Continuous-wave mode-locked and dispersion-compensated femtosecond optical parametric oscillator,” Opt. Lett. 15, 136 (1990).
    [Crossref] [PubMed]
  6. P. E. Powers, R. J. Ellingson, W. S. Pelouch, and C. L. Tang, “Recent advances of the Ti:sapphire-pumped high-repetition-rate femtosecond optical parametric oscillator,” J. Opt. Soc. Am. B 10, 2162 (1993).
    [Crossref]
  7. A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
    [Crossref]
  8. A. Agnesi, G. C. Reali, V. Kubecek, S. Kumazaki, Y. Takagi, and K. Yoshihara, “β-Barium borate and lithium triborate picosecond parametric oscillators pumped by a frequency-tripled passive negative-feedback mode-locked Nd:YAG laser,” J. Opt. Soc. Am. B 10, 2211 (1993).
    [Crossref]
  9. R. Laenen, H. Graener, and A. Laubereau, “Broadly tunable femtosecond pulses generated by optical parametric oscillation,” Opt. Lett. 15, 971 (1990).
    [Crossref] [PubMed]
  10. K. Wolfrum, R. Laenen, and A. Laubereau, “Intense bandwidth- and diffraction-limited picosecond pulses with large tuning range,” Opt. Commun. 97, 41 (1993).
    [Crossref]
  11. J. D. V. Khaydarov, J. H. Andrews, and K. D. Singer, “Pulse compression in a synchronously pumped optical parametric oscillator from group-velocity mismatch,” Opt. Lett. 19, 831 (1994).
    [Crossref] [PubMed]
  12. J. D. V. Khaydarov, J. H. Andrews, and K. D. Singer, “20-fold pulse compression in a synchronously pumped optical parametric oscillator,” Appl. Phys. Lett. 65, 1614 (1994).
    [Crossref]
  13. A. Umbrasas, J.-C. Diels, J. Jacob, and A. Piskarskas, “Parametric oscillation and compression in KTP crystals,” Opt. Lett. 19, 1753 (1994).
    [Crossref] [PubMed]
  14. A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
    [Crossref]
  15. P. Heinz and A. Laubereau, “Stable generation of subpicosecond pulses by feedback-controlled mode locking of a Nd:glass laser,” J. Opt. Soc. Am. B 6, 1574 (1989).
    [Crossref]
  16. J. H. Andrews, J. D. V. Khaydarov, and K. D. Singer, “Contribution of the 21Ag state to the third-order optical nonlinearity in a squaraine dye,” Opt. Lett. 19, 984 (1994).
    [Crossref] [PubMed]
  17. E. C. Cheung and J. M. Liu, “Theory of a synchronously pumped optical parametric oscillator in steady-state operation,” J. Opt. Soc. Am. B 7, 1385 (1990).
    [Crossref]
  18. S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
    [Crossref]
  19. A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).
  20. See, for example, Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984).
  21. Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
    [Crossref]
  22. See, for example, S. A. Akhmanov, V. A. Vysloukh, and A. S. Chirkin, Optics of Femtosecond Laser Pulses (American Institute of Physics, New York, 1992).
  23. See, for example, V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, New York, 1991).

1994 (5)

1993 (4)

1992 (2)

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

1990 (4)

1989 (3)

W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
[Crossref]

P. Heinz and A. Laubereau, “Stable generation of subpicosecond pulses by feedback-controlled mode locking of a Nd:glass laser,” J. Opt. Soc. Am. B 6, 1574 (1989).
[Crossref]

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

1987 (1)

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

1968 (1)

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

Agnesi, A.

A. Agnesi, G. C. Reali, V. Kubecek, S. Kumazaki, Y. Takagi, and K. Yoshihara, “β-Barium borate and lithium triborate picosecond parametric oscillators pumped by a frequency-tripled passive negative-feedback mode-locked Nd:YAG laser,” J. Opt. Soc. Am. B 10, 2211 (1993).
[Crossref]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Akhmanov, S. A.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

See, for example, S. A. Akhmanov, V. A. Vysloukh, and A. S. Chirkin, Optics of Femtosecond Laser Pulses (American Institute of Physics, New York, 1992).

Andrews, J. H.

Banfi, G. P.

Bosenberg, W. R.

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
[Crossref]

Cheng, L. K.

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

Cheung, E. C.

Chirkin, A. S.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

See, for example, S. A. Akhmanov, V. A. Vysloukh, and A. S. Chirkin, Optics of Femtosecond Laser Pulses (American Institute of Physics, New York, 1992).

Danielius, R.

Davis, L.

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

Del Corno, A.

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Di Trapani, P.

R. Danielius, A. Piskarskas, A. Stabinis, G. P. Banfi, P. Di Trapani, and R. Righini, “Traveling-wave parametric generation of widely tunable, highly coherent femtosecond light pulses,” J. Opt. Soc. Am. B 10, 2222 (1993).
[Crossref]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Dianov, E. M.

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

Diels, J.-C.

A. Umbrasas, J.-C. Diels, J. Jacob, and A. Piskarskas, “Parametric oscillation and compression in KTP crystals,” Opt. Lett. 19, 1753 (1994).
[Crossref] [PubMed]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Dmitriev, V. G.

See, for example, V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, New York, 1991).

Drabovich, K. N.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

Edelstein, D. C.

Eilmerl,

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

Ellingson, R. J.

Fix, A.

A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
[Crossref]

Fogliani, M.

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Graener, H.

Graham, E. K.

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

Grudinin, A. B.

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

Gurzadyan, G. G.

See, for example, V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, New York, 1991).

Heinz, P.

Jacob, J.

Khaydarov, D. V.

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

Khaydarov, J. D. V.

Khokhlov, R. V.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

Korobkin, D. V.

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

Kovrigin, A. I.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

Kubecek, V.

A. Agnesi, G. C. Reali, V. Kubecek, S. Kumazaki, Y. Takagi, and K. Yoshihara, “β-Barium borate and lithium triborate picosecond parametric oscillators pumped by a frequency-tripled passive negative-feedback mode-locked Nd:YAG laser,” J. Opt. Soc. Am. B 10, 2211 (1993).
[Crossref]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Kumazaki, S.

Laenen, R.

K. Wolfrum, R. Laenen, and A. Laubereau, “Intense bandwidth- and diffraction-limited picosecond pulses with large tuning range,” Opt. Commun. 97, 41 (1993).
[Crossref]

R. Laenen, H. Graener, and A. Laubereau, “Broadly tunable femtosecond pulses generated by optical parametric oscillation,” Opt. Lett. 15, 971 (1990).
[Crossref] [PubMed]

Lane, R. J.

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

Laubereau, A.

Liu, J. M.

Nikogosyan, D. N.

See, for example, V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, New York, 1991).

Noack, F.

Pelouch, W. S.

P. E. Powers, R. J. Ellingson, W. S. Pelouch, and C. L. Tang, “Recent advances of the Ti:sapphire-pumped high-repetition-rate femtosecond optical parametric oscillator,” J. Opt. Soc. Am. B 10, 2162 (1993).
[Crossref]

W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
[Crossref]

Petrov, V.

Piskarskas, A.

Powers, P. E.

Prokhorov, A. M.

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

Reali, G. C.

A. Agnesi, G. C. Reali, V. Kubecek, S. Kumazaki, Y. Takagi, and K. Yoshihara, “β-Barium borate and lithium triborate picosecond parametric oscillators pumped by a frequency-tripled passive negative-feedback mode-locked Nd:YAG laser,” J. Opt. Soc. Am. B 10, 2211 (1993).
[Crossref]

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Righini, R.

Seifert, F.

Shen, Y. R.

See, for example, Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984).

Singer, K. D.

Smilgevicius, V.

A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
[Crossref]

Stabinis, A.

Sukhorukov, A. P.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

Takagi, Y.

Tang, C. L.

P. E. Powers, R. J. Ellingson, W. S. Pelouch, and C. L. Tang, “Recent advances of the Ti:sapphire-pumped high-repetition-rate femtosecond optical parametric oscillator,” J. Opt. Soc. Am. B 10, 2162 (1993).
[Crossref]

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

E. S. Wachman, D. C. Edelstein, and C. L. Tang, “Continuous-wave mode-locked and dispersion-compensated femtosecond optical parametric oscillator,” Opt. Lett. 15, 136 (1990).
[Crossref] [PubMed]

W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
[Crossref]

Ukachi, T.

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

Umbrasas, A.

A. Umbrasas, J.-C. Diels, J. Jacob, and A. Piskarskas, “Parametric oscillation and compression in KTP crystals,” Opt. Lett. 19, 1753 (1994).
[Crossref] [PubMed]

A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
[Crossref]

Velsko, S.

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

Vysloukh, V. A.

See, for example, S. A. Akhmanov, V. A. Vysloukh, and A. S. Chirkin, Optics of Femtosecond Laser Pulses (American Institute of Physics, New York, 1992).

Wachman, E. S.

Wallenstain, R.

A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
[Crossref]

Wolfrum, K.

K. Wolfrum, R. Laenen, and A. Laubereau, “Intense bandwidth- and diffraction-limited picosecond pulses with large tuning range,” Opt. Commun. 97, 41 (1993).
[Crossref]

Yeh, C. Y.

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Yoshihara, K.

Zalkin, A.

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

Zhao, X. M.

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

Appl. Phys. Lett. (2)

W. R. Bosenberg, W. S. Pelouch, and C. L. Tang, “High-efficiency and narrow-linewidth operation of a two-crystal β-BaB2O4optical parametric oscillator,” Appl. Phys. Lett. 55, 1952 (1989).
[Crossref]

J. D. V. Khaydarov, J. H. Andrews, and K. D. Singer, “20-fold pulse compression in a synchronously pumped optical parametric oscillator,” Appl. Phys. Lett. 65, 1614 (1994).
[Crossref]

Bull. Acad. Sci. USSR Phys. Ser. (1)

A. B. Grudinin, E. M. Dianov, D. V. Korobkin, A. M. Prokhorov, and D. V. Khaydarov, “Stimulated Raman scattering and propagation of femtosecond solitons in optical fibers,” Bull. Acad. Sci. USSR Phys. Ser. 53, 107 (1989).

IEEE J. Quantum Electron. (2)

A. Agnesi, A. Del Corno, P. Di Trapani, M. Fogliani, G. C. Reali, J.-C. Diels, C. Y. Yeh, X. M. Zhao, and V. Kubecek, “Generation of extended pulse trains of minimum duration by passive negative feedback applied to solid-state Q-switched lasers,” IEEE J. Quantum Electron. 28, 710 (1992).
[Crossref]

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, and A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598 (1968).
[Crossref]

J. Appl. Phys. (1)

Eilmerl, L. Davis, S. Velsko, E. K. Graham, and A. Zalkin, “Optical, mechanical, and thermal properties of barium borate,” J. Appl. Phys. 62, 1968 (1987).
[Crossref]

J. Opt. Soc. Am. B (5)

Opt. Commun. (2)

A. Piskarskas, V. Smilgevicius, A. Umbrasas, A. Fix, and R. Wallenstain, “Parametric oscillation in beta-Barium borate synchronously pumped by the third harmonic of a continuously excited mode-locked and Q-switched Nd:YAG laser,” Opt. Commun. 77, 335 (1990).
[Crossref]

K. Wolfrum, R. Laenen, and A. Laubereau, “Intense bandwidth- and diffraction-limited picosecond pulses with large tuning range,” Opt. Commun. 97, 41 (1993).
[Crossref]

Opt. Lett. (6)

Proc. IEEE (1)

C. L. Tang, W. R. Bosenberg, T. Ukachi, R. J. Lane, and L. K. Cheng, “Optical parametric oscillators,” Proc. IEEE 80, 365 (1992).
[Crossref]

Other (3)

See, for example, S. A. Akhmanov, V. A. Vysloukh, and A. S. Chirkin, Optics of Femtosecond Laser Pulses (American Institute of Physics, New York, 1992).

See, for example, V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Springer-Verlag, New York, 1991).

See, for example, Y. R. Shen, The Principles of Nonlinear Optics (Wiley, New York, 1984).

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Figures (13)

Fig. 1
Fig. 1

OPO configuration. BBO X-tals, two BBO crystals; PSM, pump steering mirrors; PRM, pump return mirror; GM, highly reflective mirror with gold coating; OM, partially reflective dielectric output mirror.

Fig. 2
Fig. 2

PRM (triangles) and output-mirror (circles) positions for minimum SPOPO threshold versus oscillating wavelength. Solid curve, calculated output-mirror position for a perfect match of the time periods of the pump and the oscillating pulses. We took into account the group velocities of the pump and the oscillating waves.

Fig. 3
Fig. 3

SPOPO output radiation (OR; average power) and its second harmonic (SH), recorded simultaneously as functions of the cavity-length detuning ΔL from the cavity length corresponding to minimum threshold.

Fig. 4
Fig. 4

Autocorrelation functions of, A, the compressed and the uncompressed pulses and, B, the corresponding spectra for pulses at approximately λ = 1.8 μm. The cavity-length detuning ΔL = 0.20 mm was chosen to minimize the compressed-pulse duration.

Fig. 5
Fig. 5

Autocorrelation functions of, A, the compressed and the uncompressed pulses and, B, the corresponding spectra for pulses at approximately λ = 1.3 μm. The cavity-length detuning ΔL = 0.15 mm was chosen to minimize the compressed-pulse duration.

Fig. 6
Fig. 6

Autocorrelation functions of the compressed pulses at 1.8 μm at two pump levels. A, 1.8 mJ; B, 0.7 mJ. The threshold is approximately 0.18 mJ. Solid curves, theoretical best fit; circles, experimental data. In both cases the cavity-length detuning ΔL was chosen to minimize pulse duration.

Fig. 7
Fig. 7

Compressed-pulse duration at λ = 1.3 μm as a function of pump energy. Filled circles, experimental data; solid curve, theory. The cavity-length detunings ΔL in the experiment and the calculations were chosen to minimize the compressed-pulse duration at a high pump level.

Fig. 8
Fig. 8

Calculated time profiles of the compressed, the uncompressed, and the undepleted pump pulses. The time is normalized to the pump-pulse FWHM duration. The pulses’ positions correspond to the moment when the pulses leave the crystal. The pump-pulse intensity is normalized to its maximum. The oscillating-pulse intensities are normalized to the maximum for the compressed pulse.

Fig. 9
Fig. 9

GVW between the pump and the generated waves over the crystal length. Data are normalized to the pump-pulse duration. Solid curve, oscillating wave; dotted curve, nonoscillating wave. BBO crystal length, 20 mm; pump wavelength, 355 nm; pump-pulse duration, 11 ps.

Fig. 10
Fig. 10

Calculated duration of the compressed pulses, normalized to that of the pump pulse, as a function of the difference between the pump intensity and the threshold intensities for different cavity round-trip losses. The cavity-length detuning ΔL was chosen to minimize the compressed-pulse duration at a high pump level.

Fig. 11
Fig. 11

Calculated intensities of the compressed pulses, normalized to their maximum values (solid curves), and of the undepleted pump pulse (dashed curves) versus time (normalized to the pump-pulse duration). The intensity parameter values (IPIT) are A, 5; B, 14; C, 24; D, 70.

Fig. 12
Fig. 12

Contrast of the compressed pulses as a function of the difference of the pump intensity and its threshold value (IPIT) at different round-trip cavity losses. All the conditions and symbols are the same as in Fig. 10.

Fig. 13
Fig. 13

Normalized dispersion parameter γ (for the 20-mm BBO crystal and the 355-nm pump wavelength) for the pump-pulse durations of A, 11 ps; B, 1 ps; C, 100 fs.

Equations (1)

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A 1 z + δ 13 A 1 τ + i 2 d 1 2 A 1 τ 2 = σ A 2 * A 3 , A 2 z + δ 23 A 2 τ + i 2 d 2 2 A 2 τ 2 = σ A 1 * A 3 , A 3 z + i 2 d 3 2 A 3 τ 2 = - σ A 1 A 2 ,

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