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Pedersen, Henrik C.; Webb, David J.; Johansen, Per M. (1998)
Languages: English
Types: Article
Subjects:

Classified by OpenAIRE into

arxiv: Physics::Accelerator Physics
The influence of beam coupling on photorefractive parametric oscillation generated in a Bi12SiO20 crystal is investigated experimentally by comparing two configurations with and without the presence of beam coupling. It is shown that beam coupling has a great influence; for example, the transversal split of the K/2 subharmonic grating is seen only in the beam-coupling geometry. A case that resembles K/4 subharmonic generation can, however, still be found in the absence of beam coupling.
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    • 1. S. Mallick, B. Imbert, H. Ducollet, J.-P. Herriau, and J. P. Huignard, ''Generation of spatial subharmonics by twowave mixing in a nonlinear photorefractive medium,'' J. Appl. Phys. 63, 5660-5663 (1988).
    • 2. B. I. Sturman, M. Mann, J. Otten, and K. H. Ringhofer, ''Space-charge waves in photorefractive crystals and their parametric excitation,'' J. Opt. Soc. Am. B 10, 1919-1932 (1993).
    • 3. See, for example, J.-P. Huignard and A. Marrakchi, ''Coherent signal beam amplification in two-wave mixing experiments with photorefractive Bi12SiO20 crystals,'' Opt. Commun. 38, 249-254 (1981); Ph. Re´fre´gier, L. Solymar, H. Rajbenbach, and J.-P. Huignard, ''Two-beam coupling in photorefractive Bi12SiO20 crystals with moving grating: theory and experiments,'' J. Appl. Phys. 58, 45-57 (1985).
    • 4. H. C. Pedersen and P. M. Johansen, ''Parametric oscillation in photorefractive media,'' J. Opt. Soc. Am. B 12, 1065- 1073 (1995).
    • 5. J. Takacs and L. Solymar, ''Observation of split subharmonics in a Bi12SiO20 crystal'' (personal communication, 1991).
    • 6. H. C. Pedersen and P. M. Johansen, ''Observation of angularly tilted subharmonic gratings in photorefractive bismuth silicon oxide,'' Opt. Lett. 19, 1418-1420 (1994).
    • 7. H. C. Pedersen and P. M. Johansen, ''Longitudinal, degenerate, and transversal parametric oscillation in photorefractive media,'' Phys. Rev. Lett. 77, 3106-3109 (1996).
    • 8. H. C. Pedersen and P. M. Johansen, ''Longitudinal, degenerate, and transversal photorefractive parametric oscillation: theory and experiment,'' J. Opt. Soc. Am. B 14, 1418-1427 (1997).
    • 9. C. H. Kwak, M. Shamonin, J. Takacs, and L. Solymar, ''Spatial subharmonics in photorefractive Bi12SiO20 crystal with a square wave applied field,'' Appl. Phys. Lett. 62, 328-330 (1993).
    • 10. T. E. McClelland, D. J. Webb, B. I. Sturman, and K. H. Ringhofer, ''Generation of spatial subharmonic gratings in the absence of photorefractive beam coupling,'' Phys. Rev. Lett. 73, 3082-3084 (1994).
    • 11. L. B. Au, L. Solymar, and K. H. Ringhofer, ''Subharmonics in BSO,'' in Technical Digest on Photorefractive Materials, Effects and Devices II (Socie´te´ Francais d'Optique, Aussois, France, 1990), pp. 87-91.
    • 12. O. P. Nestiorkin, ''Instability of spatial subharmonics under hologram recording in a photorefractive crystal,'' Opt. Commun. 81, 315-320 (1991).
    • 13. B. I. Sturman, A. Bledowski, J. Otten, and K. H. Ringhofer, ''Spatial subharmonics in photorefractive crystals,'' J. Opt. Soc. Am. B 9, 672-681 (1992).
    • 14. D. J. Webb and L. Solymar, ''Observation of spatial subharmonics arising during two-wave mixing in BSO,'' Opt. Commun. 74, 386-388 (1990).
    • 15. D. J. Webb, L. B. Au, D. C. Jones, and L. Solymar, ''Onset of subharmonics generated by forward interactions in Bi12SiO20,'' Appl. Phys. Lett. 57, 1602-1604 (1990).
    • 16. J. Takacs, M. Schaub, and L. Solymar, ''Subharmonics in photorefractive Bi12TiO20 crystals,'' Opt. Commun. 91, 252- 254 (1992).
    • 17. H. C. Pedersen, P. M. Johansen, and D. J. Webb, ''Photorefractive subharmonics-a beam coupling effect?'' J. Opt. Soc. Am. B 15, 1528-1532 (1998).
    • 18. B. I. Sturman, M. Aguilar, F. Agullo-Lopez, and K. H. Ringhofer, ''Fundamentals of the nonlinear theory of photorefractive subharmonics,'' Phys. Rev. E 55, 6072 (1997).
    • 19. E. V. Podivilov, H. C. Pedersen, P. M. Johansen, and B. I. Sturman, ''Transversal parametric oscillation and it's external stability in photorefractive sillenite crystals,'' Phys. Rev. E 57, 6112-6126 (1998).
    • 20. See, for example, A. Marrakchi, R. V. Johnson, and A. R. Tanguay, Jr., ''Polarization properties of photorefractive diffraction in electrooptic and optically active sillenite crystals (Bragg regime),'' J. Opt. Soc. Am. B 3, 321-336 (1986); or P. Yeh, Introduction to Photorefractive Nonlinear Optics (Wiley, New York, 1993).
    • 21. T. E. McClelland, D. J. Webb, B. I. Sturman, M. Mann, and K. H. Ringhofer, ''Low frequency peculiarities of the photorefractive response in sillenites,'' Opt. Commun. 113, 371- 377 (1995).
    • 22. T. E. McClelland, D. J. Webb, B. I. Sturman, E. Shamonina, M. Mann, and K. H. Ringhofer, ''Excitation of higher spatial harmonics by a moving light pattern in sillenites,'' Opt. Commun. 131, 315-321 (1996).
    • 23. P. M. Johansen, ''Enhanced four-wave mixing in photorefractive BSO produced by temporal phase shifts,'' J. Phys. D 22, 247-253 (1989).
    • 24. P. E. Andersen, P. Buchhave, P. M. Petersen, and M. V. Vasnetsov, ''Nonlinear combinations of gratings in Bi12SiO20: theory and experiment,'' J. Opt. Soc. Am. B 12, 1422-1433 (1995).
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