Abstract

Efficient operation of cw mode-locked singly resonant optical parametric oscillators (OPO’s) of critically phase-matched KTiOPO4 is demonstrated. The OPO’s are synchronously pumped by the 1053-nm fundamental or the 527-nm second harmonic of a 76-MHz-repetition rate mode-locked Nd:YLF laser with pump-pulse lengths of 40 and 30 ps, respectively. Tuning of the OPO’s is accomplished by changing the phase-matching angle. The 527-nm-pumped system has been investigated in the tuning range from 1.01 to 1.1 μm. At a pump power of 1.3 W this OPO generated 14-ps-long pulses with a total average power of 580 mW, yielding an efficiency of 44%. The 1053-nm-pumped OPO produced powerful infrared radiation in the ranges from 1.55 to 1.56 μm (signal wave) and from 3.22 to 3.28 μm (idler wave). For 14 W of pump power the average output power of the 12-ps-long pulses exceeded 2.0 W for the signal wave and 0.8 W for the idler wave. The total output power corresponds to an efficiency of 21%.

© 1993 Optical Society of America

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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  4. D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
    [CrossRef]
  5. E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
    [CrossRef]
  6. E. S. Wachman, D. C. Edelstein, C. L. Tang, “Continuous-wave mode-locked and dispersion-compensated femtosecond optical parametric oscillator,” Opt. Lett. 15, 136 (1990).
    [CrossRef] [PubMed]
  7. G. Mak, Q. Fu, H. M. van Driel, “Externally pumped high repetition rate femtosecond infrared optical parametric oscillator,” Appl. Phys. Lett. 60, 542 (1992).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef] [PubMed]

1993 (1)

1992 (6)

1991 (2)

E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
[CrossRef]

E. C. Cheung, J. M. Liu, “Efficient generation of ultrashort, wavelength-tunable infrared pulses,” J. Opt. Soc. Am. B 8, 1491 (1991).
[CrossRef]

1990 (2)

1989 (1)

D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
[CrossRef]

1988 (1)

A. Piskarskas, V. Smil’gyavichyus, R. Umbrasas, “Continuous parametric generation of picosecond light pulses,” Sov. J. Quantum Electron. 18, 155 (1988).
[CrossRef]

1987 (1)

Bosenberg, W. R.

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

Byer, R. L.

Cheng, L. K.

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

Cheung, E. C.

Ebrahimzadeh, M.

Eckardt, R. C.

Edelstein, D. C.

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

D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
[CrossRef]

Fan, T. Y.

Fan, Y. X.

Feigelson, R. S.

Ferguson, A. I.

Fix, A.

Fu, Q.

Q. Fu, G. Mak, H. M. van Driel, “High-power, 62-fs infrared optical parametric oscillator synchronously pumped by a 76-MHz Ti:sapphire laser,” Opt. Lett. 17, 1006 (1992).
[CrossRef] [PubMed]

G. Mak, Q. Fu, H. M. van Driel, “Externally pumped high repetition rate femtosecond infrared optical parametric oscillator,” Appl. Phys. Lett. 60, 542 (1992).
[CrossRef]

Hanna, D. C.

Haub, J. G.

Hu, B. Q.

Huang, C. E.

Johnson, M. J.

Lane, R. J.

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

Liu, J. M.

Mak, G.

G. Mak, Q. Fu, H. M. van Driel, “Externally pumped high repetition rate femtosecond infrared optical parametric oscillator,” Appl. Phys. Lett. 60, 542 (1992).
[CrossRef]

Q. Fu, G. Mak, H. M. van Driel, “High-power, 62-fs infrared optical parametric oscillator synchronously pumped by a 76-MHz Ti:sapphire laser,” Opt. Lett. 17, 1006 (1992).
[CrossRef] [PubMed]

Malcolm, G. P. A.

McCarthy, M. J.

Orr, B. J.

Pelouch, W. S.

W. S. Pelouch, P. E. Powers, C. L. Tang, “Ti:sapphire-pumped, high-repetition-rate femtosecond optical parametric oscillator,” Opt. Lett. 17, 1070 (1992).
[CrossRef] [PubMed]

E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
[CrossRef]

Piskarskas, A.

A. Piskarskas, V. Smil’gyavichyus, R. Umbrasas, “Continuous parametric generation of picosecond light pulses,” Sov. J. Quantum Electron. 18, 155 (1988).
[CrossRef]

Powers, P. E.

Schröder, T.

Smil’gyavichyus, V.

A. Piskarskas, V. Smil’gyavichyus, R. Umbrasas, “Continuous parametric generation of picosecond light pulses,” Sov. J. Quantum Electron. 18, 155 (1988).
[CrossRef]

Tang, C. L.

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

W. S. Pelouch, P. E. Powers, C. L. Tang, “Ti:sapphire-pumped, high-repetition-rate femtosecond optical parametric oscillator,” Opt. Lett. 17, 1070 (1992).
[CrossRef] [PubMed]

E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
[CrossRef]

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

D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
[CrossRef]

Ukachi, T.

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

Umbrasas, R.

A. Piskarskas, V. Smil’gyavichyus, R. Umbrasas, “Continuous parametric generation of picosecond light pulses,” Sov. J. Quantum Electron. 18, 155 (1988).
[CrossRef]

van Driel, H. M.

G. Mak, Q. Fu, H. M. van Driel, “Externally pumped high repetition rate femtosecond infrared optical parametric oscillator,” Appl. Phys. Lett. 60, 542 (1992).
[CrossRef]

Q. Fu, G. Mak, H. M. van Driel, “High-power, 62-fs infrared optical parametric oscillator synchronously pumped by a 76-MHz Ti:sapphire laser,” Opt. Lett. 17, 1006 (1992).
[CrossRef] [PubMed]

Wachman, E. S.

E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
[CrossRef]

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

D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
[CrossRef]

Wallenstein, R.

Appl. Opt. (1)

Appl. Phys. Lett. (2)

G. Mak, Q. Fu, H. M. van Driel, “Externally pumped high repetition rate femtosecond infrared optical parametric oscillator,” Appl. Phys. Lett. 60, 542 (1992).
[CrossRef]

D. C. Edelstein, E. S. Wachman, C. L. Tang, “Broadly tunable high repetition rate femtosecond optical parametric oscillator,” Appl. Phys. Lett. 54, 1728 (1989).
[CrossRef]

J. Appl. Phys. (1)

E. S. Wachman, W. S. Pelouch, C. L. Tang, “Cw femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893 (1991).
[CrossRef]

J. Opt. Soc. Am. B (3)

Opt. Lett. (5)

Proc. IEEE (1)

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

Sov. J. Quantum Electron. (1)

A. Piskarskas, V. Smil’gyavichyus, R. Umbrasas, “Continuous parametric generation of picosecond light pulses,” Sov. J. Quantum Electron. 18, 155 (1988).
[CrossRef]

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Figures (6)

Fig. 1
Fig. 1

Schematic diagram of the OPO resonator that is used for the 527-nm-pumped xy-KTP OPO. For the xz-KTP OPO pumped by the 1053-nm laser radiation the polarizing beam splitter is omitted. In this case the idler wave is extracted through the spherical dichroic mirror. The indicated second-harmonic generation (SHG) is required only for the xy-KTP OPO. LBO, lithium trioborate; FPE, Fabry–Perot étalon.

Fig. 2
Fig. 2

Wavelength-tuning curve of the xy-KYP OPO pumped with the second-harmonic radiation of the Nd:YLF laser. The dots correspond to experimentally determined data; the solid curve indicates results that were calculated with the Sellmeier equation of Fan et al.14

Fig. 3
Fig. 3

Autocorrelation trace of a typical pulse from the xy-KTP OPO. The measured autocorrelation width corresponds to a Gaussian pulse width of 12 ps.

Fig. 4
Fig. 4

Average OPO output power of the 1551-nm signal wave as a function of input power of the xz-KTP OPO pumped by the fundamental of the Nd:YLF laser.

Fig. 5
Fig. 5

Wavelength of the signal and the idler waves of the xz-KTP OPO pumped with the fundamental 1053-nm radiation of the Nd:YLF laser. The dots correspond to experimentally determined data; the solid curves indicate values that were calculated with the Sellmeier equation.

Fig. 6
Fig. 6

Wavelength of signal and idler waves of the critically phase-matched xz-KTP OPO pumped with the fundamental 1053-nm radiation of the Nd:YLF laser. The dotted curve corresponds to the FOM.

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