Abstract

We demonstrate that bulk Rb-doped KTiOPO4 (RKTP) shows improved susceptibility to gray-tracking compared to flux-grown KTiOPO4. We show high-fidelity periodic poling of 1 mm thick RKTP with a period of 3.18 µm for second harmonic generation at 398 nm with a normalized conversion efficiency of 1.79%/Wcm. The crystal is used to frequency-double 138 fs-long pulses with an efficiency of 20% and a peak intensity of 560 MW/cm2 without visible gray-tracking signs. We demonstrate that two-photon absorption is the predominant mechanism limiting the SHG efficiency in this spectral range at high peak powers and high repetition rates.

© 2013 OSA

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  1. J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
    [CrossRef]
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    [CrossRef] [PubMed]
  3. C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
    [CrossRef]
  4. A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
    [CrossRef]
  5. M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
    [CrossRef]
  6. G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
    [CrossRef] [PubMed]
  7. S. Wang, V. Pasiskevicius, and F. Laurell, “Dynamics of green light-induced infrared absorption in KTiOPO4 and periodically poled KTiOPO4,” J. Appl. Phys.96(4), 2023–2028 (2004).
    [CrossRef]
  8. J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
    [CrossRef]
  9. H. T. Huang, G. Qiu, B. T. Zhang, J. L. He, J. F. Yang, and J. L. Xu, “Comparative study on the intracavity frequency-doubling 532 nm laser based on gray-tracking-resistant KTP and conventional KTP,” Appl. Opt.48(32), 6371–6375 (2009).
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    [CrossRef]
  11. S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
    [CrossRef]
  12. A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
    [CrossRef]
  13. F. Ö. Ilday, K. Beckwitt, Y.-F. Chen, H. Lim, and F. W. Wise, “Controllable Raman-like nonlinearities from nonstationary, cascaded quadratic processes,” J. Opt. Soc. Am. B21(2), 376–383 (2004).
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    [CrossRef]
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    [CrossRef]
  17. A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov, “Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals,” Opt. Express15(3), 1155–1160 (2007).
    [CrossRef] [PubMed]
  18. F. Torabi-Goudarzi and E. Riis, “Efficient cw high-power frequency doubling in periodically poled KTP,” Opt. Commun.227(4-6), 389–403 (2003).
    [CrossRef]
  19. M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
    [CrossRef]
  20. F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
    [CrossRef]
  21. S. J. Holmgren, V. Pasiskevicius, and F. Laurell, “Generation of 2.8 ps pulses by mode-locking a Nd:GdVO4 laser with defocusing cascaded Kerr lensing in periodically poled KTP,” Opt. Express13(14), 5270–5278 (2005).
  22. G. Toci, M. Vannini, and R. Salimbeni, “Pertubative model for nonstationary second-order cascaded effects,” J. Opt. Soc. Am. B15(1), 103–117 (1998).
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2011 (3)

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
[CrossRef]

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

2009 (1)

2007 (3)

A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov, “Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals,” Opt. Express15(3), 1155–1160 (2007).
[CrossRef] [PubMed]

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
[CrossRef]

2005 (2)

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

S. J. Holmgren, V. Pasiskevicius, and F. Laurell, “Generation of 2.8 ps pulses by mode-locking a Nd:GdVO4 laser with defocusing cascaded Kerr lensing in periodically poled KTP,” Opt. Express13(14), 5270–5278 (2005).

2004 (3)

2003 (1)

F. Torabi-Goudarzi and E. Riis, “Efficient cw high-power frequency doubling in periodically poled KTP,” Opt. Commun.227(4-6), 389–403 (2003).
[CrossRef]

2002 (2)

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
[CrossRef]

2001 (1)

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

1998 (2)

M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
[CrossRef]

G. Toci, M. Vannini, and R. Salimbeni, “Pertubative model for nonstationary second-order cascaded effects,” J. Opt. Soc. Am. B15(1), 103–117 (1998).
[CrossRef]

1995 (1)

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

1993 (1)

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

1962 (1)

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Alexandrovski, A.

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

Angert, N.

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

Armstrong, D. J.

Armstrong, J. A.

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Baruchel, J.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Beckwitt, K.

Belt, R. F.

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

Bloembergen, N.

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Brown, C. T. A.

Canalias, C.

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
[CrossRef]

A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov, “Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals,” Opt. Express15(3), 1155–1160 (2007).
[CrossRef] [PubMed]

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

Cerullo, G.

M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
[CrossRef]

Chen, Y.-F.

Ducuing, J.

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Edwards, G. J.

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

Fokine, M.

Goellner, S. H.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

Halliburton, L. E.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

He, J. L.

Hirohashi, J.

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

Holmgren, S. J.

Hopkins, F. K.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

Huang, H. T.

Hutton, K. B.

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

Ilday, F. Ö.

Jiang, Q.

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

Keeble, D. S.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Lafford, T. A.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Lagatsky, A. A.

Laurell, F.

A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
[CrossRef]

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
[CrossRef]

A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov, “Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals,” Opt. Express15(3), 1155–1160 (2007).
[CrossRef] [PubMed]

S. J. Holmgren, V. Pasiskevicius, and F. Laurell, “Generation of 2.8 ps pulses by mode-locking a Nd:GdVO4 laser with defocusing cascaded Kerr lensing in periodically poled KTP,” Opt. Express13(14), 5270–5278 (2005).

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “Dynamics of green light-induced infrared absorption in KTiOPO4 and periodically poled KTiOPO4,” J. Appl. Phys.96(4), 2023–2028 (2004).
[CrossRef]

Lim, H.

Liu, X.

F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
[CrossRef]

LoIacono, D. N.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

Magni, V.

M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
[CrossRef]

Masiello, F.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Pack, M. V.

Pasiskevicius, V.

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
[CrossRef]

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

A. A. Lagatsky, C. T. A. Brown, W. Sibbett, S. J. Holmgren, C. Canalias, V. Pasiskevicius, F. Laurell, and E. U. Rafailov, “Efficient doubling of femtosecond pulses in aperiodically and periodically poled KTP crystals,” Opt. Express15(3), 1155–1160 (2007).
[CrossRef] [PubMed]

S. J. Holmgren, V. Pasiskevicius, and F. Laurell, “Generation of 2.8 ps pulses by mode-locking a Nd:GdVO4 laser with defocusing cascaded Kerr lensing in periodically poled KTP,” Opt. Express13(14), 5270–5278 (2005).

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “Dynamics of green light-induced infrared absorption in KTiOPO4 and periodically poled KTiOPO4,” J. Appl. Phys.96(4), 2023–2028 (2004).
[CrossRef]

Pernot, P.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Pershan, P. S.

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Qian, L.

F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
[CrossRef]

Qiu, G.

Rafailov, E. U.

Riis, E.

F. Torabi-Goudarzi and E. Riis, “Efficient cw high-power frequency doubling in periodically poled KTP,” Opt. Commun.227(4-6), 389–403 (2003).
[CrossRef]

Roth, M.

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

Rottenberg, J.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

Salimbeni, R.

Scripsick, M. P.

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

Sibbett, W.

Smith, A. V.

Strömqvist, G.

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Thilmann, N.

Thomas, P. A.

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

Toci, G.

Torabi-Goudarzi, F.

F. Torabi-Goudarzi and E. Riis, “Efficient cw high-power frequency doubling in periodically poled KTP,” Opt. Commun.227(4-6), 389–403 (2003).
[CrossRef]

Tseitlin, M.

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

Vannini, M.

Wang, S.

S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
[CrossRef]

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “Dynamics of green light-induced infrared absorption in KTiOPO4 and periodically poled KTiOPO4,” J. Appl. Phys.96(4), 2023–2028 (2004).
[CrossRef]

Ward, R. C. C.

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

Wise, F.

F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
[CrossRef]

Wise, F. W.

Xu, J. L.

Yang, J. F.

Zavelani-Rossi, M.

M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
[CrossRef]

Zhang, B. T.

Zukauskas, A.

A. Zukauskas, G. Strömqvist, V. Pasiskevicius, F. Laurell, M. Fokine, and C. Canalias, “Fabrication of submicrometer quasi-phase-matched devices in KTP and RKTP,” Opt. Mater. Express1(7), 1319–1325 (2011).
[CrossRef]

A. Zukauskas, N. Thilmann, V. Pasiskevicius, F. Laurell, and C. Canalias, “5 mm thick periodically poled Rb-doped KTP for high energy optical parametric frequency conversion,” Opt. Mater. Express1(2), 201–206 (2011).
[CrossRef]

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

Appl. Opt. (2)

Appl. Phys. Lett. (1)

M. P. Scripsick, D. N. LoIacono, J. Rottenberg, S. H. Goellner, L. E. Halliburton, and F. K. Hopkins, “Defects responsible for gray tracks in flux-grown KTiOPO4,” Appl. Phys. Lett.66(25), 3428–3430 (1995).
[CrossRef]

IEEE J. Quantum Electron. (1)

M. Zavelani-Rossi, G. Cerullo, and V. Magni, “Mode locking by cascading second order nonlinearities,” IEEE J. Quantum Electron.34(1), 61–70 (1998).
[CrossRef]

J. Appl. Cryst. (1)

F. Masiello, T. A. Lafford, P. Pernot, J. Baruchel, D. S. Keeble, P. A. Thomas, A. Zukauskas, G. Strömqvist, F. Laurell, and C. Canalias, “Investigation by coherent X-ray section topography of ferroelectric domain behaviour as a function of temperature in periodically poled Rb:KTP,” J. Appl. Cryst.44(3), 462–466 (2011).
[CrossRef]

J. Appl. Phys. (4)

S. Wang, V. Pasiskevicius, and F. Laurell, “Dynamics of green light-induced infrared absorption in KTiOPO4 and periodically poled KTiOPO4,” J. Appl. Phys.96(4), 2023–2028 (2004).
[CrossRef]

J. Hirohashi, V. Pasiskevicius, S. Wang, and F. Laurell, “Picosecond blue-light-induced infrared absorption in single-domain and periodically poled ferroelectrics,” J. Appl. Phys.101(3), 033105 (2007).
[CrossRef]

C. Canalias, J. Hirohashi, V. Pasiskevicius, and F. Laurell, “Polarization switching characteristics of flux grown KTiOPO4 and RbTiOPO4 at room temperature,” J. Appl. Phys.97(12), 124105 (2005).
[CrossRef]

Q. Jiang, P. A. Thomas, K. B. Hutton, and R. C. C. Ward, “Rb-doped potassium titanyl phosphate for periodic ferroelectric domain inversion,” J. Appl. Phys.92(5), 2717–2723 (2002).
[CrossRef]

J. Nonlinear Opt. Phys. Mater. (1)

F. Wise, L. Qian, and X. Liu, “Applications of cascaded quadratic nonlinearities to femtosecond pulse generation,” J. Nonlinear Opt. Phys. Mater.11(03), 317–338 (2002).
[CrossRef]

J. Opt. Soc. Am. B (2)

Opt. Commun. (1)

F. Torabi-Goudarzi and E. Riis, “Efficient cw high-power frequency doubling in periodically poled KTP,” Opt. Commun.227(4-6), 389–403 (2003).
[CrossRef]

Opt. Express (2)

Opt. Mater. (2)

M. Roth, N. Angert, M. Tseitlin, and A. Alexandrovski, “On the optical quality of KTP crystals for nonlinear optical and electro-optic applications,” Opt. Mater.16(1-2), 131–136 (2001).
[CrossRef]

S. Wang, V. Pasiskevicius, and F. Laurell, “High-efficiency frequency converters with periodically-poled Rb-doped KTiOPO4,” Opt. Mater.30(4), 594–599 (2007).
[CrossRef]

Opt. Mater. Express (2)

Phys. Rev. (1)

J. A. Armstrong, N. Bloembergen, J. Ducuing, and P. S. Pershan, “Interactions between light waves in a nonlinear dielectric,” Phys. Rev.127(6), 1918–1939 (1962).
[CrossRef]

Phys. Rev. B Condens. Matter (1)

G. J. Edwards, M. P. Scripsick, L. E. Halliburton, and R. F. Belt, “Identification of a radiation-induced hole center in KTiOPO4.,” Phys. Rev. B Condens. Matter48(10), 6884–6891 (1993).
[CrossRef] [PubMed]

Other (2)

http://www.crystech.com/products/crystals/nlocrystals/GTR.htm

V. G. Dmitriev, G. G. Gurzadyan, and D. N. Nikogosyan, Handbook of Nonlinear Optical Crystals (Optical Sciences, Springer, Heidelberg, 1997).

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Figures (8)

Fig. 1
Fig. 1

Induced absorption dynamics in RKTP, KTP and GTR-KTP.

Fig. 2
Fig. 2

Micrographs of the domain structure revealed by chemical etching on (a) patterned face, (b) unpatterned face of RKTP, and (c) patterned face and (d) unpatterned face of KTP.

Fig. 3
Fig. 3

Second harmonic power (open symbols) and efficiencies (solid symbols) for PPRKTP (squares) and PPKTP (circles) as a function of the CW Ti:sapphire pump power.

Fig. 4
Fig. 4

SH average power (open symbols) and SHG efficiency (solid symbols) in 6.5 mm-long PPKTP (circles) and PPRKTP (squares) for 138 fs fundamental pulses at 796 nm, (a). Long-term variation of the SHG efficiency at 0.4 GW/cm2, (b).

Fig. 5
Fig. 5

SH average power (solid symbols) and SHG efficiency (open symbols) in 1 mm-long PPRKTP for 85 fs fundamental pulses at 796 nm and 1/e2 beam waist radius of 50 µm.

Fig. 6
Fig. 6

Normalized total transmission (solid squares) and the ratio of the SH and fundamental power after the crystal (open squares) as a function of crystal position with respect to the beam waist. Maximum intensity at the beam waist 5.8 GWcm−2, PPRKTP crystal length 1 mm, pulse length 85 fs.

Fig. 7
Fig. 7

The measured normalized pulse spectra of the second harmonic (a) and fundamental (b) at different fundamental peak intensities. The input fundamental pulse length was 85 fs; different intensities were obtained by moving PPRKTP crystal with respect to the beam waist without adjusting the laser. Dashed lines on the fundamental spectra indicate the positions of exact quasi-phase matching for both intensities.

Fig. 8
Fig. 8

Calculated spectra of the fundamental and the second harmonic after SHG in 1 mm of PPRKTP crystal. Central wavelength of the fundamental corresponding to 0 THz frequency is 796 nm. Dashed lines: spectra for 138 fs pulse with the peak intensity of 0.187 GWcm−2 and Δk = 0. Solid lines: spectra for 85 fs pulse with peak intensity of 5.8 GWcm−2 and Δk = 25 cm−1.

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