Abstract

We report on efficient collinear optical parametric generation (OPG) with gain band ranging from 1400 to 2600 nm in a 2 cm-long periodically poled lithium niobate (PPLN) crystal. Such an ultra-broad gain band was obtained by choosing the pump wavelength at 933 nm, at which the group-velocities of the signal and the idler match near the degeneracy point. High OPG efficiency was obtained by quasi-phase matching (QPM). The ultra-broadband OPG led to efficient collinear RGB generation from a single PPLN crystal at a fixed pump wavelength. The green and red beams were found to be originating from high-order QPM sum-frequency generation between the pump and selected frequencies in the OPG band, while the blue beam was high-order QPM second-harmonic generation of the pump.

© 2007 Optical Society of America

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  1. N. E. Yu, J. H. Ro, M. Cha, S. Kurimura and T. Taira, "Broadband quasi-phase-matched second-harmonic generation in MgO-doped periodically poled LiNbO3 at the communications band," Opt. Lett. 27, 1046-1048 (2002).
    [CrossRef]
  2. M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
    [CrossRef]
  3. O. E. Martinez, "Achromatic phase matching for second harmonic generation of femtosecond pulses," IEEE J. Quantum Electron. 25, 2464-2468 (1989).
    [CrossRef]
  4. O. Y. Jeon, M. J. Jin, H. H. Lim, B. J. Kim and M. Cha, "Broadband optical parametric amplification at the communication band with periodically poled lithium niobate," Opt. Express 14, 7210-7215 (2006).
    [CrossRef] [PubMed]
  5. P. S. Kuo, K. L. Vodopyanov, M. M. Fejer, D. M. Simanovskii, X. Yu, J. S. Harris, D. Bliss and D. Weyburne, "Optical parametric generation of a mid-infrared continuum in orientation-patterned GaAs," Opt. Lett. 31, 71-73 (2006).
    [CrossRef] [PubMed]
  6. M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
    [CrossRef]
  7. K. A. O’Donnell and A. B. U’Ren, "Observation of ultrabroadband, beamlike parametric downconversion, "Opt. Lett. 32, 817-819 (2007).
    [CrossRef] [PubMed]
  8. D. H. Jundt, "Temperature-dependent Sellmeier equation for the index of refraction, ne, in congruent lithium niobate," Opt. Lett. 22, 1553-1555 (1997).
    [CrossRef]
  9. M. M. Fejer, G. A, Magel, D. H. Jundt and R. L. Byer, "Quasi-phase-matched second harmonic generation: Tuning and Tolerences," IEEE J. Quantum. Electron. 28, 2631-2654 (1992).
    [CrossRef]

2007 (1)

2006 (3)

2002 (1)

1997 (1)

1994 (1)

M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
[CrossRef]

1992 (1)

M. M. Fejer, G. A, Magel, D. H. Jundt and R. L. Byer, "Quasi-phase-matched second harmonic generation: Tuning and Tolerences," IEEE J. Quantum. Electron. 28, 2631-2654 (1992).
[CrossRef]

1989 (1)

O. E. Martinez, "Achromatic phase matching for second harmonic generation of femtosecond pulses," IEEE J. Quantum Electron. 25, 2464-2468 (1989).
[CrossRef]

Bliss, D.

Bortz, M. L.

M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
[CrossRef]

Canalias, C.

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Cha, M.

Fejer, M. M.

P. S. Kuo, K. L. Vodopyanov, M. M. Fejer, D. M. Simanovskii, X. Yu, J. S. Harris, D. Bliss and D. Weyburne, "Optical parametric generation of a mid-infrared continuum in orientation-patterned GaAs," Opt. Lett. 31, 71-73 (2006).
[CrossRef] [PubMed]

M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
[CrossRef]

M. M. Fejer, G. A, Magel, D. H. Jundt and R. L. Byer, "Quasi-phase-matched second harmonic generation: Tuning and Tolerences," IEEE J. Quantum. Electron. 28, 2631-2654 (1992).
[CrossRef]

Fragemann, A.

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Fujimura, M.

M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
[CrossRef]

Harris, J. S.

Jeon, O. Y.

Jin, M. J.

Jundt, D. H.

Kim, B. J.

Kuo, P. S.

Kurimura, S.

Laurell, F.

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Lim, H. H.

Martinez, O. E.

O. E. Martinez, "Achromatic phase matching for second harmonic generation of femtosecond pulses," IEEE J. Quantum Electron. 25, 2464-2468 (1989).
[CrossRef]

O’Donnell, K. A.

Pasiskevicius, V.

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Ro, J. H.

Simanovskii, D. M.

Taira, T.

Tiihonen, M.

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Vodopyanov, K. L.

Weyburne, D.

Yu, N. E.

Yu, X.

Appl. Phys. B (1)

M. Tiihonen, V. Pasiskevicius, A. Fragemann, C. Canalias and F. Laurell, "Ultrabroad gain in an optical parametric generator with periodically poled KTiOPO4," Appl. Phys. B 85, 73-77 (2006).
[CrossRef]

Electron. Lett. (1)

M. L. Bortz, M. Fujimura and M. M. Fejer, "Increased acceptance bandwidth for quasi-phase matched second harmonic generation in LiNbO3 waveguides," Electron. Lett. 30, 34-35 (1994).
[CrossRef]

IEEE J. Quantum Electron. (1)

O. E. Martinez, "Achromatic phase matching for second harmonic generation of femtosecond pulses," IEEE J. Quantum Electron. 25, 2464-2468 (1989).
[CrossRef]

IEEE J. Quantum. Electron. (1)

M. M. Fejer, G. A, Magel, D. H. Jundt and R. L. Byer, "Quasi-phase-matched second harmonic generation: Tuning and Tolerences," IEEE J. Quantum. Electron. 28, 2631-2654 (1992).
[CrossRef]

Opt. Express (1)

Opt. Lett. (4)

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Figures (4)

Fig. 1.
Fig. 1.

OPG spectrum, Symbols: experiment, line: calculation using Sellmeier’s formula. Pump: 933 nm, for 20 mm-long PPLN with QPM period of 27.0 µm at 24 oC. (Dips at λ14 are explained in the text.)

Fig. 2.
Fig. 2.

OPG spectra for three different pump wavelength at 24°C. Experimental spectra (a) and coherence length curves versus signal or idler wavelength, shown with 27.0 µm-QPM period line (horizontal) (b). Open triangles and dotted line for λp=946 nm, open circles and solid line for λp=933 nm, closed squares and dashed line for λp=928 nm.

Fig. 3.
Fig. 3.

Measured white light spectrum (dotted) and calculated QPM peaks locations (solid) along with a photograph of the spectrally separated white light.

Fig. 4.
Fig. 4.

Measured RGB spectra at 24°C (solid) and 55°C (dotted)

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