Abstract

We report a nanosecond sum-frequency generating optical parametric oscillator based on a single KTiOAsO4 crystal that is simultaneously phase matched for optical parametric generation and sum-frequency generation. Pumped at a wavelength of 1064 nm by a Q-switched Nd:YAG laser, this device produces 10.4-ns-long 8.3 mJ red pulses at a wavelength of 627 nm with 21% energy conversion efficiency. This device provides a simple and efficient method for converting high energy Nd:YAG lasers to a red wavelength.

© 2005 Optical Society of America

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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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  8. S. N. Zhu, Y. Y. Zhu, and N. B. Ming, �??Quasi-phase-matched third-harmonic generation in a quasi-periodic optical superlattice,�?? Science 278, 843�??846 (1997).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  11. X. P. Zhang, J. Hebling, J. Kuhl, W.W. Rühle, and H. Giessen, �??Efficient intracavity generation of visible pulses in a femtosecond near-infrared optical parametric oscillator,�?? Opt. Lett. 26, 2005�??2007 (2001).
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    [CrossRef] [PubMed]
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    [CrossRef]
  14. T. Kartalo�?lu and O. Aytür, �??Femtosecond self-doubling optical parametric oscillator based on KTiOAsO4,�?? IEEE J. Quantum Electron. 39, 65�??67 (2003).
    [CrossRef]
  15. T. W. Ren, J. L. He, C. Zhang, S. N. Zhu, Y. Y. Zhu, and Y. Hang, �??Simultaneous generation of three primary colours using aperiodically poled LiTaO3,�?? J. Phys. Condens. Matter 16, 3289�??3294 (2004).
    [CrossRef]
  16. Y. Dikmelik, G. Akgün, and O. Aytür, �??Plane-wave dynamics of optical parametric oscillation with simultaneous sum-frequency generation,�?? IEEE J. Quantum Electron. 35, 897�??912 (1999).
    [CrossRef]
  17. D. L. Fenimore, K. L. Schepler, U. B. Ramabadran, and S. R. McPherson, �??Infrared corrected Sellmeier coefficients for potassium titanyl arsenate,�?? J. Opt. Soc. Am. B 12, 794�??796 (1995).
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  18. J.-P. Fève, B. Boulanger, O. Pacaud, I. Rousseau, B. Ménaert, G. Marnier, P. Villeval, C. Bonnin, G. M. Loiacono, and D. N. Loiacono, �??Phase-matching measurements and Sellmeier equations over the complete transparency range of KTiOAsO4, RbTiOAsO4, and CsTiOAsO4,�?? J. Opt. Soc. Am. B 17, 775�??780 (2000).
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  19. K. Kato, N. Umemura, and E. Tanaka, �??90�?� phase-matched mid-infrared parametric oscillation in undoped KTiOAsO4,�?? Jpn. J. Appl. Phys. 36, L403�??L405 (1997).
    [CrossRef]

Appl. Phys. Lett. (1)

W. R. Bosenberg, L. K. Cheng, and C. L. Tang, �??Ultraviolet optical parametric oscillation in β-BaB2O4,�?? Appl. Phys. Lett. 54, 13�??15 (1989).
[CrossRef]

Continuous-wave frequency tripling and q (1)

O. Pfister, J. S.Wells, L. Hollberg, L. Zink, D. A. Van Baak, M. D. Levenson, and W. R. Bosenberg, �??Continuous-wave frequency tripling and quadrupling by simultaneous three-wave mixings in periodically poled crystals: application to a two-step 1.19�??10.71- μm frequency bridge,�?? Opt. Lett. 22, 1211�??1213 (1997).
[CrossRef] [PubMed]

IEEE J. Quantum Electron. (2)

T. Kartalo�?lu and O. Aytür, �??Femtosecond self-doubling optical parametric oscillator based on KTiOAsO4,�?? IEEE J. Quantum Electron. 39, 65�??67 (2003).
[CrossRef]

Y. Dikmelik, G. Akgün, and O. Aytür, �??Plane-wave dynamics of optical parametric oscillation with simultaneous sum-frequency generation,�?? IEEE J. Quantum Electron. 35, 897�??912 (1999).
[CrossRef]

J. Opt. Soc. Am. B (6)

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

J.-P. Fève, B. Boulanger, O. Pacaud, I. Rousseau, B. Ménaert, G. Marnier, P. Villeval, C. Bonnin, G. M. Loiacono, and D. N. Loiacono, �??Phase-matching measurements and Sellmeier equations over the complete transparency range of KTiOAsO4, RbTiOAsO4, and CsTiOAsO4,�?? J. Opt. Soc. Am. B 17, 775�??780 (2000).
[CrossRef]

K. G. Köprülü, T. Kartalo�?lu, Y. Dikmelik, and O. Aytür, �??Single-crystal sum-frequency-generating optical parametric oscillator,�?? J. Opt. Soc. Am. B 16, 1546�??1552 (1999).
[CrossRef]

D. E. Withers, G. Robertson, A. J. Henderson, Y. Tang, Y. Cui, W. Sibbett, B. D. Sinclair, and M. H. Dunn, �??Comparison of lithium triborate and β-barium borate as nonlinear media for optical parametric oscillators,�?? J. Opt. Soc. Am. B 10, 1737�??1743 (1993).
[CrossRef]

A. Fix, T. Schröder, R. Wallenstein, J. G. Haub, M. J. Johnson, and B. J. Orr, �??Tunable β-barium borate optical parametric oscillator: operating characteristics with and without injection seeding,�?? J. Opt. Soc. Am. B 10, 1744�??1750 (1993).
[CrossRef]

T. Kartalo�?lu, Z. G. Figen, and O. Aytür, �??Simultaneous phase matching of optical parametric oscillation and second-harmonic generation in aperiodically poled lithium niobate,�?? J. Opt. Soc. Am. B 20, 343�??350 (2003).
[CrossRef]

J. Phys. Condens. Matter (1)

T. W. Ren, J. L. He, C. Zhang, S. N. Zhu, Y. Y. Zhu, and Y. Hang, �??Simultaneous generation of three primary colours using aperiodically poled LiTaO3,�?? J. Phys. Condens. Matter 16, 3289�??3294 (2004).
[CrossRef]

Jpn. J. Appl. Phys. (1)

K. Kato, N. Umemura, and E. Tanaka, �??90�?� phase-matched mid-infrared parametric oscillation in undoped KTiOAsO4,�?? Jpn. J. Appl. Phys. 36, L403�??L405 (1997).
[CrossRef]

Laser Optoelektron. (1)

A. Fix, T. Schröder, and R. Wallenstein, �??The optical parametric oscillators of beta-barium borate and lithium triborate: new sources of powerful tunable laser radiation in the ultraviolet, visible and near infrared,�?? Laser Optoelektron. 23, 106�??110 (1991).

Opt. Lett. (3)

Phys. Rev. Lett. (2)

K. Fradkin-Kashi, A. Arie, P. Urenski, and G. Rosenman, �??Multiple nonlinear optical interactions with arbitrary wave vector differences,�?? Phys. Rev. Lett. 88, 023903 (2002).
[CrossRef] [PubMed]

R. A. Andrews, H. Rabin, and C. L. Tang, �??Coupled parametric downconversion and upconversion with simultaneous phase matching,�?? Phys. Rev. Lett. 25, 605�??608 (1970).
[CrossRef]

Science (1)

S. N. Zhu, Y. Y. Zhu, and N. B. Ming, �??Quasi-phase-matched third-harmonic generation in a quasi-periodic optical superlattice,�?? Science 278, 843�??846 (1997).
[CrossRef]

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Figures (7)

Fig. 1.
Fig. 1.

Experimental setup of the SF-OPO.

Fig. 2.
Fig. 2.

Sum-frequency energy conversion efficiency as a function of the polarization rotation angle. Pump energy is held fixed at 39.2 mJ.

Fig. 3.
Fig. 3.

Output sum-frequency energy and pump depletion as functions of pump energy. Polarization rotation angle is held fixed at 36°.

Fig. 4.
Fig. 4.

Optimum polarization rotation angle and maximum energy conversion efficiency as functions of pump energy.

Fig. 5.
Fig. 5.

Spectrum of the sum-frequency beam.

Fig. 6.
Fig. 6.

Signal energy at a polarization rotation angle of 0° (no SFG) and sum-frequency energy at a polarization rotation angle of 28° as functions of the propagation direction in xy-plane of KTA (θ=90°).

Fig. 7.
Fig. 7.

Tuning curves of the signal wavelength calculated using the refractive index data given in Ref. [17] for parametric generation (signal is p-polarized) and refractive index data given in Ref. [18] for SFG (signal is s-polarized). Measured signal wavelengths are also shown in the figure.

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