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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 1, Iss. 8 — Aug. 20, 2003
  • pp: 462–464

Spatial soliton by cascading ?^((2)) effect and its self-induced wave-guide in quasi-phase-matched media

Kezhu Hong, Xianfeng Chen, Guangqie Gao, and Yingli Chen  »View Author Affiliations

Chinese Optics Letters, Vol. 1, Issue 8, pp. 462-464 (2003)

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The formation of the spatial solitons in the quadratic nonlinearity ?^((2)) media by cascading second harmonic generation (SHG) in quasi-phase-matched (QPM) sample is studied on the basis of nonlinear Schrodinger equation (NLSE). When the solitary wave propagates in the QPM media, it formed optical wave-guides through cascading ?^((2)) effect called self-induced soliton wave-guide. Transverse refractive index distribution of the self-induced soliton wave-guide of fundamental and SHG wave is obtained by cascading process. Analysis of guided-mode of such self-induced soliton wave-guide is first proposed to our knowledge. Because the power needed for forming the spatial solitons in cascading process is much lower than that inKerr media, this kind of self-induced soliton wave-guide shows potential applications in all-optical signal process.

© 2005 Chinese Optics Letters

OCIS Codes
(230.0250) Optical devices : Optoelectronics
(230.4320) Optical devices : Nonlinear optical devices
(230.7400) Optical devices : Waveguides, slab

Kezhu Hong, Xianfeng Chen, Guangqie Gao, and Yingli Chen, "Spatial soliton by cascading ?^((2)) effect and its self-induced wave-guide in quasi-phase-matched media," Chin. Opt. Lett. 1, 462-464 (2003)

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