Abstract

Femtosecond optical parametric amplification that results in microjoule mid-infrared pulses at wavelengths exceeding 3 µm is demonstrated. Narrow-band quasi-cw seeding at the signal wavelength is applied to ensure the generation of nearly transform-limited femtosecond pulses at the idler wavelength. The broad bandwidth of the parametric amplification provided by pumping with femtosecond pulses from a Ti:sapphire regenerative amplifier at high intensity results in idler pulse durations shorter than the pump pulse length. The potentials of three nonlinear optical crystals that belong to the potassium titanyl phosphate family are comparatively studied. At 1-kHz repetition rate our all-solid-state system produces highly synchronized ∼100-fs pulses in the spectral range between 3 and 4 µm.

© 1997 Optical Society of America

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    [CrossRef] [PubMed]
  3. J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  7. M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
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    [CrossRef] [PubMed]
  11. E. S. Wachman, W. S. Pelouch, C. L. Tang, “CW femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893–1895 (1991).
    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  20. D. E. Gragson, D. S. Alavi, G. L. Richmond, “Tunable picosecond infrared laser system based on parametric amplification in KTP with a Ti:sapphire amplifier,” Opt. Lett. 20, 1991–1993 (1995).
    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
  23. L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
    [CrossRef]
  24. D. L. Fenimore, K. L. Schepler, U. B. Ramabadran, S. R. McPherson, “Infrared corrected Sellmeier coefficients for potassium titanyl arsenate,” J. Opt. Soc. Am. B 12, 794–796 (1995).
    [CrossRef]
  25. J. C. Jacco, G. M. Loiacono, “Nature of the infrared spectrum in band-edge region of KTiOPO4,” Appl. Phys. Lett. 58, 560–561 (1991).
    [CrossRef]
  26. V. Petrov, F. Noack, “Frequency upconversion of tunable femtosecond pulses by parametric amplification and sum-frequency generation in a single nonlinear crystal,” Opt. Lett. 20, 2171–2173 (1995).
    [CrossRef] [PubMed]
  27. S. J. Brosnan, R. L. Byer, “Optical parametric oscillator threshold and linewidth studies,” IEEE J. Quantum Electron. QE-15, 415–431 (1979).
    [CrossRef]
  28. V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
    [CrossRef]
  29. S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
    [CrossRef]

1995 (9)

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

D. L. Fenimore, K. L. Schepler, U. B. Ramabadran, S. R. McPherson, “Infrared corrected Sellmeier coefficients for potassium titanyl arsenate,” J. Opt. Soc. Am. B 12, 794–796 (1995).
[CrossRef]

G. R. Holtom, R. A. Crowell, X. S. Xie, “High-repetition-rate femtosecond optical parametric oscillator–amplifier system near 3 µm,” J. Opt. Soc. Am. B 12, 1723–1731 (1995).
[CrossRef]

V. Petrov, F. Noack, “Tunable femtosecond optical parametric amplifier in the mid-infrared with narrow-band seeding,” J. Opt. Soc. Am. B 12, 2214–2221 (1995).
[CrossRef]

G. R. Holtom, R. A. Crowell, L. K. Cheng, “Femtosecond mid-infrared optical parametric oscillator based on CsTiOAsO4,” Opt. Lett. 20, 1880–1882 (1995).
[CrossRef] [PubMed]

D. E. Gragson, D. S. Alavi, G. L. Richmond, “Tunable picosecond infrared laser system based on parametric amplification in KTP with a Ti:sapphire amplifier,” Opt. Lett. 20, 1991–1993 (1995).
[CrossRef] [PubMed]

V. Petrov, F. Noack, “Frequency upconversion of tunable femtosecond pulses by parametric amplification and sum-frequency generation in a single nonlinear crystal,” Opt. Lett. 20, 2171–2173 (1995).
[CrossRef] [PubMed]

S. M. McCahon, S. A. Anson, D.-J. Jang, T. F. Boggess, “Generation of 3–4-µm femtosecond pulses from a synchronously pumped, critically phase-matched KTiOPO4 optical parametric oscillator,” Opt. Lett. 20, 2309–2311 (1995).
[CrossRef]

1994 (8)

A. Lohner, P. Kruck, W. W. Rühle, “Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µm,” Appl. Phys. B 59, 211–213 (1994).
[CrossRef]

U. Emmerichs, H. J. Bakker, H. Kurz, “Generation of high-repetition rate femtosecond pulses tunable in the mid-infrared,” Opt. Commun. 111, 497–501 (1994).
[CrossRef]

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
[CrossRef]

B. Boulanger, J. P. Feve, G. Marnier, B. Menaert, X. Cabirol, P. Villeval, C. Bonnin, “Relative sign and absolute magnitude of d(2) nonlinear coefficients of KTP from second-harmonic-generation measurements,” J. Opt. Soc. Am. B 11, 750–757 (1994).
[CrossRef]

P. E. Powers, C. L. Tang, L. K. Cheng, “High-repetition-rate femtosecond optical parametric oscillator based on RbTiOAsO4,” Opt. Lett. 19, 1439–1441 (1994).
[CrossRef] [PubMed]

F. Seifert, V. Petrov, M. Woerner, “Solid-state laser system for the generation of midinfrared femtosecond pulses tunable from 3.3 to 10 µm,” Opt. Lett. 19, 2009–2011 (1994).
[CrossRef] [PubMed]

1993 (3)

1991 (4)

T. Nishikawa, N. Uesugi, J. Yumoto, “Parametric superfluorescence in KTiOPO4 crystals pumped by 1-ps pulses,” Appl. Phys. Lett. 58, 1943–1945 (1991);T. Nishikawa, N. Uesugi, “Effects of walk-off and group velocity difference on the optical parrametric generation in KTiOPO4 crystals,” J. Appl. Phys. 77, 4941–4947 (1995).
[CrossRef]

J. C. Jacco, G. M. Loiacono, “Nature of the infrared spectrum in band-edge region of KTiOPO4,” Appl. Phys. Lett. 58, 560–561 (1991).
[CrossRef]

E. S. Wachman, W. S. Pelouch, C. L. Tang, “CW femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893–1895 (1991).
[CrossRef]

T. Elsaesser, M. C. Nuss, “Femtosecond pulses in the mid-infrared generated by downconversion of a traveling-wave dye laser,” Opt. Lett. 16, 411–413 (1991);C. Ludwig, W. Frey, M. Woerner, T. Elsaesser, “Generation of synchronized femtosecond pulses independently tunable in the mid-infrared,” Opt. Commun. 102, 447–451 (1993).
[CrossRef] [PubMed]

1990 (1)

1988 (1)

1987 (1)

1979 (1)

S. J. Brosnan, R. L. Byer, “Optical parametric oscillator threshold and linewidth studies,” IEEE J. Quantum Electron. QE-15, 415–431 (1979).
[CrossRef]

1968 (1)

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Akhmanov, S. A.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Alavi, D. S.

Anson, S. A.

Bakker, H. J.

U. Emmerichs, H. J. Bakker, H. Kurz, “Generation of high-repetition rate femtosecond pulses tunable in the mid-infrared,” Opt. Commun. 111, 497–501 (1994).
[CrossRef]

Becker, P. C.

Bierlein, J. D.

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

Boggess, T. F.

Bonnin, C.

Boulanger, B.

Brosnan, S. J.

S. J. Brosnan, R. L. Byer, “Optical parametric oscillator threshold and linewidth studies,” IEEE J. Quantum Electron. QE-15, 415–431 (1979).
[CrossRef]

Byer, R. L.

S. J. Brosnan, R. L. Byer, “Optical parametric oscillator threshold and linewidth studies,” IEEE J. Quantum Electron. QE-15, 415–431 (1979).
[CrossRef]

Cabirol, X.

Cavallari, M.

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

Cheng, L. K.

Cheng, L. T.

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

Chirkin, A. S.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Crowell, R. A.

de Barros, M. R. X.

Drabovich, K. N.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Elsaesser, T.

Emmerichs, U.

U. Emmerichs, H. J. Bakker, H. Kurz, “Generation of high-repetition rate femtosecond pulses tunable in the mid-infrared,” Opt. Commun. 111, 497–501 (1994).
[CrossRef]

Fenimore, D. L.

Feve, J. P.

Gale, G. M.

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

Galperin, J.

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

Gragson, D. E.

Guo, J.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Hache, F.

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

Hamm, P.

He, H.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Herbst, R. L.

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

Holtom, G. R.

Hotsenpiller, P. A. M.

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

Jacco, J. C.

J. C. Jacco, G. M. Loiacono, “Nature of the infrared spectrum in band-edge region of KTiOPO4,” Appl. Phys. Lett. 58, 560–561 (1991).
[CrossRef]

Jang, D.-J.

Jedju, T. M.

Kafka, J. D.

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

Khokhlov, R. V.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Kittelmann, O.

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

Kovrigin, A. I.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Kruck, P.

A. Lohner, P. Kruck, W. W. Rühle, “Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µm,” Appl. Phys. B 59, 211–213 (1994).
[CrossRef]

Kurz, H.

U. Emmerichs, H. J. Bakker, H. Kurz, “Generation of high-repetition rate femtosecond pulses tunable in the mid-infrared,” Opt. Commun. 111, 497–501 (1994).
[CrossRef]

Lauterwasser, C.

Liu, Y.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Lohner, A.

A. Lohner, P. Kruck, W. W. Rühle, “Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µm,” Appl. Phys. B 59, 211–213 (1994).
[CrossRef]

Loiacono, G. M.

J. C. Jacco, G. M. Loiacono, “Nature of the infrared spectrum in band-edge region of KTiOPO4,” Appl. Phys. Lett. 58, 560–561 (1991).
[CrossRef]

Lu, Y.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Marnier, G.

McCahon, S. M.

McPherson, S. R.

Menaert, B.

Moore, D. S.

Nishikawa, T.

T. Nishikawa, N. Uesugi, J. Yumoto, “Parametric superfluorescence in KTiOPO4 crystals pumped by 1-ps pulses,” Appl. Phys. Lett. 58, 1943–1945 (1991);T. Nishikawa, N. Uesugi, “Effects of walk-off and group velocity difference on the optical parrametric generation in KTiOPO4 crystals,” J. Appl. Phys. 77, 4941–4947 (1995).
[CrossRef]

Noack, F.

V. Petrov, F. Noack, “Tunable femtosecond optical parametric amplifier in the mid-infrared with narrow-band seeding,” J. Opt. Soc. Am. B 12, 2214–2221 (1995).
[CrossRef]

V. Petrov, F. Noack, “Frequency upconversion of tunable femtosecond pulses by parametric amplification and sum-frequency generation in a single nonlinear crystal,” Opt. Lett. 20, 2171–2173 (1995).
[CrossRef] [PubMed]

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
[CrossRef]

Nuss, M. C.

Pavlov, L. I.

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

Pelouch, W. S.

E. S. Wachman, W. S. Pelouch, C. L. Tang, “CW femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893–1895 (1991).
[CrossRef]

Petrov, V.

V. Petrov, F. Noack, “Frequency upconversion of tunable femtosecond pulses by parametric amplification and sum-frequency generation in a single nonlinear crystal,” Opt. Lett. 20, 2171–2173 (1995).
[CrossRef] [PubMed]

V. Petrov, F. Noack, “Tunable femtosecond optical parametric amplifier in the mid-infrared with narrow-band seeding,” J. Opt. Soc. Am. B 12, 2214–2221 (1995).
[CrossRef]

F. Seifert, V. Petrov, M. Woerner, “Solid-state laser system for the generation of midinfrared femtosecond pulses tunable from 3.3 to 10 µm,” Opt. Lett. 19, 2009–2011 (1994).
[CrossRef] [PubMed]

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
[CrossRef]

Pieterse, J. W.

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

Powers, P. E.

Ramabadran, U. B.

Richmond, G. L.

Ringling, J.

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

Rothberg, L.

Rousseau, E.

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

Rühle, W. W.

A. Lohner, P. Kruck, W. W. Rühle, “Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µm,” Appl. Phys. B 59, 211–213 (1994).
[CrossRef]

Schepler, K. L.

Schmidt, S. C.

Seifert, F.

F. Seifert, V. Petrov, M. Woerner, “Solid-state laser system for the generation of midinfrared femtosecond pulses tunable from 3.3 to 10 µm,” Opt. Lett. 19, 2009–2011 (1994).
[CrossRef] [PubMed]

V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
[CrossRef]

V. Petrov, F. Seifert, O. Kittelmann, J. Ringling, F. Noack, “Extension of the tuning range of a femtosecond Ti:sapphire laser amplifier through cascaded second-order nonlinear frequency conversion processes,” J. Appl. Phys. 76, 7704–7712 (1994) and references therein.

Sukhorukov, A. P.

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

Tang, C. L.

P. E. Powers, C. L. Tang, L. K. Cheng, “High-repetition-rate femtosecond optical parametric oscillator based on RbTiOAsO4,” Opt. Lett. 19, 1439–1441 (1994).
[CrossRef] [PubMed]

E. S. Wachman, W. S. Pelouch, C. L. Tang, “CW femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893–1895 (1991).
[CrossRef]

Uesugi, N.

T. Nishikawa, N. Uesugi, J. Yumoto, “Parametric superfluorescence in KTiOPO4 crystals pumped by 1-ps pulses,” Appl. Phys. Lett. 58, 1943–1945 (1991);T. Nishikawa, N. Uesugi, “Effects of walk-off and group velocity difference on the optical parrametric generation in KTiOPO4 crystals,” J. Appl. Phys. 77, 4941–4947 (1995).
[CrossRef]

Vanherzeele, H.

Villeval, P.

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, 1893–1895 (1991).
[CrossRef]

Wang, J.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Watts, M. L.

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

Woerner, M.

Xie, X. S.

Yumoto, J.

T. Nishikawa, N. Uesugi, J. Yumoto, “Parametric superfluorescence in KTiOPO4 crystals pumped by 1-ps pulses,” Appl. Phys. Lett. 58, 1943–1945 (1991);T. Nishikawa, N. Uesugi, “Effects of walk-off and group velocity difference on the optical parrametric generation in KTiOPO4 crystals,” J. Appl. Phys. 77, 4941–4947 (1995).
[CrossRef]

Zhao, Q.

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

Zinth, W.

Appl. Opt. (2)

Appl. Phys. B (2)

J. D. Kafka, M. L. Watts, J. W. Pieterse, R. L. Herbst, “Mid-infrared pulse generation using a subpicosecond OPO,” Appl. Phys. B 60, 449–452 (1995).
[CrossRef]

A. Lohner, P. Kruck, W. W. Rühle, “Generation of 200 femtosecond pulses tunable between 2.5 and 5.5 µm,” Appl. Phys. B 59, 211–213 (1994).
[CrossRef]

Appl. Phys. Lett. (3)

T. Nishikawa, N. Uesugi, J. Yumoto, “Parametric superfluorescence in KTiOPO4 crystals pumped by 1-ps pulses,” Appl. Phys. Lett. 58, 1943–1945 (1991);T. Nishikawa, N. Uesugi, “Effects of walk-off and group velocity difference on the optical parrametric generation in KTiOPO4 crystals,” J. Appl. Phys. 77, 4941–4947 (1995).
[CrossRef]

J. C. Jacco, G. M. Loiacono, “Nature of the infrared spectrum in band-edge region of KTiOPO4,” Appl. Phys. Lett. 58, 560–561 (1991).
[CrossRef]

V. Petrov, F. Seifert, F. Noack, “High repetition rate traveling wave optical parametric generator producing nearly bandwidth limited 50 fs infrared light pulses,” Appl. Phys. Lett. 65, 268–270 (1994).
[CrossRef]

IEEE J. Quantum Electron. (2)

S. A. Akhmanov, A. S. Chirkin, K. N. Drabovich, A. I. Kovrigin, R. V. Khokhlov, A. P. Sukhorukov, “Nonstationary nonlinear optical effects and ultrashort light pulse formation,” IEEE J. Quantum Electron. QE-4, 598–605 (1968).
[CrossRef]

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[CrossRef]

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E. S. Wachman, W. S. Pelouch, C. L. Tang, “CW femtosecond pulses tunable in the near- and midinfrared,” J. Appl. Phys. 70, 1893–1895 (1991).
[CrossRef]

J. Cryst. Growth (1)

L. K. Cheng, L. T. Cheng, J. Galperin, P. A. M. Hotsenpiller, J. D. Bierlein, “Crystal growth and characterization of KTiOPO4 isomorphs from the self-fluxes,” J. Cryst. Growth 137, 107–115 (1994).
[CrossRef]

J. Opt. Soc. Am. B (4)

Opt. Commun. (3)

H. He, Q. Zhao, J. Guo, Y. Lu, Y. Liu, J. Wang, “Picosecond optical parametric generation in flux grown KTP,” Opt. Commun. 87, 33–35 (1993).
[CrossRef]

U. Emmerichs, H. J. Bakker, H. Kurz, “Generation of high-repetition rate femtosecond pulses tunable in the mid-infrared,” Opt. Commun. 111, 497–501 (1994).
[CrossRef]

M. Cavallari, G. M. Gale, F. Hache, L. I. Pavlov, E. Rousseau, “Mid infra-red femtosecond pulse generation by wave-mixing: numerical simulation and experiment,” Opt. Commun. 114, 329–332 (1995).
[CrossRef]

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[CrossRef] [PubMed]

M. R. X. de Barros, P. C. Becker, “Two-color synchronously mode-locked femtosecond Ti:sapphire laser,” Opt. Lett. 18, 631–633 (1993);M. R. X. de Barros, R. S. Miranda, T. M. Jedju, P. C. Becker, “High-repetition-rate femtosecond mid-infrared pulse generation,” Opt. Lett. 20, 480–482 (1995).
[CrossRef] [PubMed]

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[CrossRef] [PubMed]

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[CrossRef] [PubMed]

S. M. McCahon, S. A. Anson, D.-J. Jang, T. F. Boggess, “Generation of 3–4-µm femtosecond pulses from a synchronously pumped, critically phase-matched KTiOPO4 optical parametric oscillator,” Opt. Lett. 20, 2309–2311 (1995).
[CrossRef]

P. E. Powers, C. L. Tang, L. K. Cheng, “High-repetition-rate femtosecond optical parametric oscillator based on RbTiOAsO4,” Opt. Lett. 19, 1439–1441 (1994).
[CrossRef] [PubMed]

G. R. Holtom, R. A. Crowell, L. K. Cheng, “Femtosecond mid-infrared optical parametric oscillator based on CsTiOAsO4,” Opt. Lett. 20, 1880–1882 (1995).
[CrossRef] [PubMed]

D. E. Gragson, D. S. Alavi, G. L. Richmond, “Tunable picosecond infrared laser system based on parametric amplification in KTP with a Ti:sapphire amplifier,” Opt. Lett. 20, 1991–1993 (1995).
[CrossRef] [PubMed]

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[CrossRef] [PubMed]

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Figures (11)

Fig. 1
Fig. 1

oeo-type phase matching in the x–z plane versus pump wavelength: (a) phase matching angle θ, (b) internal angular acceptance. The signal wavelength is fixed at 1.053 µm.

Fig. 2
Fig. 2

Group velocity mismatch versus pump wavelength: (a) ΔIP = 1/vI - 1/vP, (b) ΔSP = 1/vS - 1/vP. vI, vS, and vP denote the group velocities of idler, signal, and pump waves, respectively.

Fig. 3
Fig. 3

Figure of merit deffI λS nI nS nP) -1/2 versus pump wavelength. We used a constant nonlinearity of d24 = 3 pm/V for all crystals in this calculation because of the experimental uncertainties in the values listed in Table 1.

Fig. 4
Fig. 4

Experimental setup: L1, 30-cm lens; L2, -15-cm lens; L3, 40-cm lens; L4, 30-cm CaF2 lens; L5, 15-cm BaF2 lens; NC1, OPA crystal; NC2, sum-frequency generation crystal; F1, 1-mm-thick Ge plate; F2, tunable broadband interference filter; DM1, dichroic mirror totally transmitting the 1.053-µm wave and 80% reflecting near 800 nm; DM2, Al-coated beam splitter; BS1–BS2, removable mirrors; D, Si photodiode.

Fig. 5
Fig. 5

Transmission curves of the 3-mm-thick KTP, RTA, and KTA samples.

Fig. 6
Fig. 6

Idler energy versus idler wavelength for KTP (squares), RTA (circles), and KTA (diamonds). The on-axis seed intensity is 50 kW/cm2 and the maximum on-axis pump intensity is 160 GW/cm2.

Fig. 7
Fig. 7

Idler spectra (upper curves) and cross-correlation functions of the idler and pump pulses (lower curves) for KTP, RTA, and KTA at an idler wavelength of 3 µm.

Fig. 8
Fig. 8

Idler spectra (upper curves) and cross-correlation functions of the idler and pump pulses (lower curves) for KTP, RTA, and KTA at an idler wavelength of 3.25 µm.

Fig. 9
Fig. 9

Idler spectra (upper curves) and cross-correlation functions of the idler and pump pulses (lower curves) for KTP, RTA, and KTA at an idler wavelength of 3.5 µm.

Fig. 10
Fig. 10

KTP OPA at lower pump level at λI = 3 µm compared with Fig. 7, which corresponds here to an output idler energy of 0.7 µJ: (a) idler spectrum, (b) cross correlation with the pump pulses.

Fig. 11
Fig. 11

RTA OPA with the pump pulses at λP = 821 nm: (a) idler spectrum, (b) cross-correlation function.

Tables (1)

Tables Icon

Table 1 Published Values of d24, Sources for Sellmeier Expansions, and Walk-Off Angles for KTP, RTP, KTA, RTA, and CTA

Equations (6)

Equations on this page are rendered with MathJax. Learn more.

G0=0.25 exp2Γ02-Δk/221/2L,
Γ0=2πdeff2IPε0cnInSnPλIλS1/2=2π2IPε0c¯FM,
Δν=0.53|ΔSI|Γ/L=0.53L|ΔSI|ΓL,
Δν1.6L|ΔSI|.
TT0TCR1/2,
Δναdνdθ2αnP2αρλP|ΔSI|.

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