Crucial effects of coupling coefficients on quasi-phase-matched harmonic generation in an optical superlattice

被引：39

作者：

Zhang, C

Zhu, YY ^{[1
]}

Yang, SX

Qin, YQ

Zhu, SN

Chen, YB

Liu, H

Ming, NB

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[2] Ctr Adv Studies Sci & Technol Microstruct, Nanjing 210093, Peoples R China

来源：

OPTICS LETTERS | 2000年 / 25卷 / 07期

关键词：

D O I：

10.1364/OL.25.000436

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Coupling of optical parametric processes in an optical superlattice through quadratic nonlinearity was analyzed theoretically. Solving the coupled equations, we found that efficient quasi-phase-matched third-harmonic (TH) generation depends not only on the magnitude of the coupling coefficients but also on their ratio Theoretically, all the fundamental energy can be transferred to the TH at a particular ratio. In other cases, there exists an optimum condition that corresponds to a maximum TH conversion efficiency. The result is of practical importance for the design of TH devices. (C) 2000 Optical Society of America OCIS codes: 190.4410, 190.2620, 130.4310.

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页码：436 / 438

页数：3

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