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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 12 — Dec. 1, 2007
  • pp: 3081–3090

Influence of composition ratio variations on optical frequency conversion in mixed crystals. II. Random variation of composition ratio

Jin Jer Huang, Wei Gao, Tao Shen, Bei Li Mao, Yu. M. Andreev, A. V. Shaiduko, G. V. Lanskii, Udit Chatterjee, and V. V. Atuchin  »View Author Affiliations


JOSA B, Vol. 24, Issue 12, pp. 3081-3090 (2007)
http://dx.doi.org/10.1364/JOSAB.24.003081


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Abstract

A theoretical model was presented to deal with optical frequency conversion in mixed nonlinear crystals with a small random variation of the composition ratio. For the pump of collimated Gaussian beams, the output powers of sum and difference frequency generations were deduced upon the assumption that the randomness is subject to the stationary Gaussian stochastic process. The induced efficiency reduction relies on the variance and correlation scales of a given varying composition ratio, which widens the phase matching bandwidth as well. The result was generalized to combined mixed crystals involving the gradual index variation. Acceptable composition ratios in different cases were also developed, as they could be applied more easily in practice. The study also includes an analysis of an intentional sinusoidal compositional modulation, which provokes potential applications in the frequency conversions of multiband lasers. The model was also exemplified by applying it to Ag Ga 1 x In x Se 2 .

© 2007 Optical Society of America

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 6, 2007
Revised Manuscript: October 14, 2007
Manuscript Accepted: October 22, 2007
Published: November 30, 2007

Citation
Jin Jer Huang, Wei Gao, Tao Shen, Bei Li Mao, Yu. M. Andreev, A. V. Shaiduko, G. V. Lanskii, Udit Chatterjee, and V. V. Atuchin, "Influence of composition ratio variations on optical frequency conversion in mixed crystals. II. Random variation of composition ratio," J. Opt. Soc. Am. B 24, 3081-3090 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-12-3081

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