SPECTRAL CHARACTERIZATION OF THE LINEAR AND QUADRATIC ELECTROOPTIC EFFECTS IN GAAS/ALGAAS MULTIPLE QUANTUM-WELL WAVE-GUIDES

被引：17

作者：

JENNINGS, A ^{[1
]}

WILKINSON, CDW ^{[1
]}

ROBERTS, JS ^{[1
]}

机构：

[1] UNIV SHEFFIELD,DEPT ELECTR & ELECT ENGN,SHEFFIELD S10 2TN,S YORKSHIRE,ENGLAND

来源：

SEMICONDUCTOR SCIENCE AND TECHNOLOGY | 1992年 / 7卷 / 01期

关键词：

D O I：

10.1088/0268-1242/7/1/010

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The electro-optic effect in GaAs/AlGaAs multiple quantum well stripe waveguides has been studied extensively for both TE and TM polarization in a spectral range close to the excitonic band edge. The effect has been resolved into two components, a linear electro-optic (LEO) effect and a quadratic electro-optic (QEO) effect. The LEO coefficients r63 and r33, have been measured to be -1.75 x 10(-12) m V-1 and zero respectively, similar to that of bulk GaAs, with no significant wavelength dependence. The quadratic effect, however, has been shown to be highly wavelength-dependent and enhanced compared with bulk GaAs. A QEO coefficient as large as 140 X 10(-20) m2 V-2 has been measured at photon energies 28 meV from the lowest energy exciton. The spectral dependence of the quadratic effect has been studied for both TE and TM polarization.

引用

页码：60 / 65

页数：6

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