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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 11 — Jun. 2, 2014
  • pp: 13164–13169

Concurrent optical parametric down-conversion in χ(2) nonlinear photonic crystals

L. Chen, P. Xu, Y. F. Bai, X. W. Luo, M. L. Zhong, M. Dai, M. H. Lu, and S. N. Zhu  »View Author Affiliations


Optics Express, Vol. 22, Issue 11, pp. 13164-13169 (2014)
http://dx.doi.org/10.1364/OE.22.013164


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Abstract

We experimentally investigated concurrent parametric downconversion processes in a two-dimensional hexagonally poled lithium tantalate crystal. The substantial enhancement of parametric gain was observed when concurrent processes shared a common parametric beam. Both degenerate and nondegenerate concurrent parametric downconversion processes were studied. Analyses of the spatial forms and output angles showed a strong dependence on the working temperature, during which a well-defined beamlike parametric output was observed. Our results will stimulate the design for coherent high-gain generation of multiple parametric beams and also shed light on the compact engineering of path-entanglement with specific spatial forms based on concurrent spontaneous parametric downconversion processes.

© 2014 Optical Society of America

OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(160.4330) Materials : Nonlinear optical materials
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 7, 2014
Revised Manuscript: May 16, 2014
Manuscript Accepted: May 16, 2014
Published: May 22, 2014

Citation
L. Chen, P. Xu, Y. F. Bai, X. W. Luo, M. L. Zhong, M. Dai, M. H. Lu, and S. N. Zhu, "Concurrent optical parametric down-conversion in χ(2) nonlinear photonic crystals," Opt. Express 22, 13164-13169 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-11-13164


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References

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