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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 20, Iss. 1 — Jan. 1, 2003
  • pp: 73–82

Theoretical investigations of efficient cascaded third-harmonic generation in quasi- phase-matched and -mismatched configurations

Yi-Qiang Qin, Yong-Yuan Zhu, Chao Zhang, and Nai-Ben Ming  »View Author Affiliations


JOSA B, Vol. 20, Issue 1, pp. 73-82 (2003)
http://dx.doi.org/10.1364/JOSAB.20.000073


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Abstract

Theoretical and numerical solutions of the nonlinear coupling-wave equations of second-harmonic (SH) and third-harmonic (TH) converters are investigated for both phase-matched and phase-mismatched configurations. For phase-mismatched TH generation, several kinds of schemes [the phase mismatch in either SH generation or sum-frequency generation (SFG) as well as the phase mismatch in both SH generation and SFG] are considered and analyzed. The optimal TH converting properties for generalized phase-mismatching operation are discussed and studied. It is found that efficient TH generation depends not only on the magnitude of the coupling coefficients but also on their ratio. A 100% TH output can be obtained at a particular ratio. The physical nature of the different ratios of the coupling coefficients is discussed.

© 2003 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.3990) Optical devices : Micro-optical devices
(230.4320) Optical devices : Nonlinear optical devices

Citation
Yi-Qiang Qin, Yong-Yuan Zhu, Chao Zhang, and Nai-Ben Ming, "Theoretical investigations of efficient cascaded third-harmonic generation in quasi-phase-matched and -mismatched configurations," J. Opt. Soc. Am. B 20, 73-82 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-1-73

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