Abstract

The beam quality of an optical parametric oscillator (OPO) within a singly resonant, confocal-positive branch unstable resonator is investigated. Resonator configurations have been found in which the beam quality of the outgoing signal exceeds the beam quality of the pump. Cavity magnification and pump-pulse duration are found to determine the signal beam quality. It is shown that signal M 2 decreases with increasing pump-pulse duration for a given cavity magnification. In an experimental demonstration of a LiNbO3 OPO within an unstable resonator, pumped by a multitransversal mode beam, a signal beam with an almost-single transversal mode has been generated, whereas the multitransversal mode behavior of the pump beam is projected on the idler beam.

© 2003 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. W. A. Neuman, S. P. Velsko, “Effect of cavity design on optical parametric oscillator performance,” in Advanced Solid-State Lasers, A. Payne, C. R. Pollock, eds., Vol. 1 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1996), pp. 179–181.
  2. M. K. Brown, M. S. Bowers, “High energy, near diffraction limited output from optical parametric oscillators using unstable resonators,” in Solid State Lasers VI, R. Scheps, ed., Proc. SPIE2986, 113–122 (1997).
    [CrossRef]
  3. A. Kaz, L. R. Marshall, “Scaling optical parametric oscillators in power, energy, and beam quality,” in Advanced Solid-State Lasers, T. Y. Fan, B. Chai, eds., Vol. 20 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1999), pp. 307–309.
  4. B. C. Johnson, V. J. Newell, J. B. Clark, “Narrow-bandwidth low-divergence optical parametric oscillator for nonlinear frequency-conversion applications,” J. Opt. Soc. Am. B 12, 2122–2127 (1995).
    [CrossRef]
  5. W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.
  6. J. N. Farmer, M. S. Bowers, W. S. Scharpf, “High brightness eyesafe optical parametric oscillator using confocal unstable resonators,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 567–571.
  7. G. Hansson, H. Karlsson, F. Laurell, “Unstable resonators optical parametric oscillator based on quasi-phase-matched RbTiOAsO4,” Appl. Opt. 40, 5446–5451 (2001).
    [CrossRef]
  8. J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
    [CrossRef]
  9. I. Moshe, S. Jackel, R. Lallouz, “Dynamic correction of thermal focusing in Nd:YAG confocal unstable resonators by use of a variable radius mirror,” Appl. Opt. 37, 7044–7048 (1998).
    [CrossRef]
  10. S. J. Brosnan, R. L. Byer, “Optical parametric oscillator threshold and linewidth studies,” IEEE J. Quantum Electron. QE-15, 415–431 (1979).
    [CrossRef]
  11. E. Granot, S. Pearl, M. Tilleman, “An analytical solution for a lossy singly resonant OPO,” J. Opt. Soc. Am. B 17, 381–386 (2000).
    [CrossRef]

2001

2000

1998

1995

1979

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

1971

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

Boczar, B.

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

Bowers, M. S.

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

M. K. Brown, M. S. Bowers, “High energy, near diffraction limited output from optical parametric oscillators using unstable resonators,” in Solid State Lasers VI, R. Scheps, ed., Proc. SPIE2986, 113–122 (1997).
[CrossRef]

J. N. Farmer, M. S. Bowers, W. S. Scharpf, “High brightness eyesafe optical parametric oscillator using confocal unstable resonators,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 567–571.

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]

Brown, M. K.

M. K. Brown, M. S. Bowers, “High energy, near diffraction limited output from optical parametric oscillators using unstable resonators,” in Solid State Lasers VI, R. Scheps, ed., Proc. SPIE2986, 113–122 (1997).
[CrossRef]

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

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]

Clark, J. B.

Farmer, J. N.

J. N. Farmer, M. S. Bowers, W. S. Scharpf, “High brightness eyesafe optical parametric oscillator using confocal unstable resonators,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 567–571.

Ferguson, G.

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

Granot, E.

Hansson, G.

Harris, S. E.

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

Jackel, S.

Johnson, B. C.

Karlsson, H.

Kaz, A.

A. Kaz, L. R. Marshall, “Scaling optical parametric oscillators in power, energy, and beam quality,” in Advanced Solid-State Lasers, T. Y. Fan, B. Chai, eds., Vol. 20 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1999), pp. 307–309.

Lallouz, R.

Laurell, F.

Marshall, L. R.

A. Kaz, L. R. Marshall, “Scaling optical parametric oscillators in power, energy, and beam quality,” in Advanced Solid-State Lasers, T. Y. Fan, B. Chai, eds., Vol. 20 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1999), pp. 307–309.

Miles, R. B.

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

Moshe, I.

Neuman, W. A.

W. A. Neuman, S. P. Velsko, “Effect of cavity design on optical parametric oscillator performance,” in Advanced Solid-State Lasers, A. Payne, C. R. Pollock, eds., Vol. 1 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1996), pp. 179–181.

Newell, V. J.

Pearl, S.

Scharpf, W.

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

Scharpf, W. S.

J. N. Farmer, M. S. Bowers, W. S. Scharpf, “High brightness eyesafe optical parametric oscillator using confocal unstable resonators,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 567–571.

Tilleman, M.

Velsko, S. P.

W. A. Neuman, S. P. Velsko, “Effect of cavity design on optical parametric oscillator performance,” in Advanced Solid-State Lasers, A. Payne, C. R. Pollock, eds., Vol. 1 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1996), pp. 179–181.

Wallace, R. W.

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

Young, J. F.

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

Appl. Opt.

IEEE J. Quantum Electron.

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

J. Appl. Phys.

J. F. Young, R. B. Miles, S. E. Harris, R. W. Wallace, “Pump linewidth requirement for optical parametric oscillators,” J. Appl. Phys. 42, 497–498 (1971).
[CrossRef]

J. Opt. Soc. Am. B

Other

W. A. Neuman, S. P. Velsko, “Effect of cavity design on optical parametric oscillator performance,” in Advanced Solid-State Lasers, A. Payne, C. R. Pollock, eds., Vol. 1 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1996), pp. 179–181.

M. K. Brown, M. S. Bowers, “High energy, near diffraction limited output from optical parametric oscillators using unstable resonators,” in Solid State Lasers VI, R. Scheps, ed., Proc. SPIE2986, 113–122 (1997).
[CrossRef]

A. Kaz, L. R. Marshall, “Scaling optical parametric oscillators in power, energy, and beam quality,” in Advanced Solid-State Lasers, T. Y. Fan, B. Chai, eds., Vol. 20 of OSA Proceedings Series (Optical Society of America, Washington, D.C., 1999), pp. 307–309.

W. Scharpf, G. Ferguson, B. Boczar, M. S. Bowers, M. K. Brown, “An eyesafe KTA OPO with an unstable resonator,” in Advanced Solid-State Lasers, R. Bosenberg, M. M. Fejer, eds., Vol. 19 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1998), pp. 189–191.

J. N. Farmer, M. S. Bowers, W. S. Scharpf, “High brightness eyesafe optical parametric oscillator using confocal unstable resonators,” in Advanced Solid-State Lasers, M. M. Fejer, H. Injeyan, U. Keller, eds., Vol. 26 of OSA Trends in Optics and Photonics Series (Optical Society of America, Washington, D.C., 1999), pp. 567–571.

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1
Fig. 1

Experimental setup. The unstable OPO resonator and the diagnostics.

Fig. 2
Fig. 2

Signal energy versus pump energy for three pump-pulse durations.

Fig. 3
Fig. 3

Far-field intensity distribution of the signal (left) and of the pump (right) at the focus of f = 2 m lens at various pump-pulse durations. The vertical and horizontal directions correspond to the ordinary and extraordinary axis of the LiNbO3 crystal.

Fig. 4
Fig. 4

Dependence of M 2 of signal and idler on pulse duration and cavity magnification. The M 2 of the pump was 2.1.

Equations (3)

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

Δkz=kp cosθp-ks cosθs-ki cosθiksθs2/2+kiθi2/2-kpθp2/2,
Δkx=kp sinθp-ks sinθs-ki sinθikpθp-ksθs-kiθi,
δθi=-ks/kiδθs=-ksθs1-m/kim.

Metrics