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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 9, Iss. 8 — Aug. 1, 1992
  • pp: 1507–1520

Periodic and chaotic spatiotemporal states in a phase-conjugate resonator using a photorefractive BaTiO3 phase-conjugate mirror

Siuying R. Liu and Guy Indebetouw  »View Author Affiliations


JOSA B, Vol. 9, Issue 8, pp. 1507-1520 (1992)
http://dx.doi.org/10.1364/JOSAB.9.001507


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Abstract

The dynamics of an externally pumped phase-conjugate resonator that uses four-wave mixing in BaTiO3 is investigated experimentally. The emergence of spatiotemporal instabilities as the degree of transverse confinement is varied by changing the Fresnel number is described in detail. Local intensity time series show that relaxing the transverse confinement leads the system from a stationary state to periodic, then to quasi-periodic, motions and finally to chaotic behavior. In some regions of parameter space two frequencies are identified in the power spectra of the time series, indicating a route to chaos following the Ruelle–Takens–Newhouse scheme [ Commun. Math. Phys. 64, 35– 40 ( 1978)]. Wave-front topological defects are identified by interferometry. As the system’s confinement is varied, the phase-defect density and the spatial correlation index are found to follow similar trends, indicating that the observed spatiotemporal dynamics may indeed be an example of defect-mediated turbulence.

© 1992 Optical Society of America

History
Original Manuscript: November 12, 1991
Revised Manuscript: January 29, 1992
Published: August 1, 1992

Citation
Siuying R. Liu and Guy Indebetouw, "Periodic and chaotic spatiotemporal states in a phase-conjugate resonator using a photorefractive BaTiO3 phase-conjugate mirror," J. Opt. Soc. Am. B 9, 1507-1520 (1992)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-9-8-1507

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