CHARACTERIZATION OF AN ALGAAS RIB WAVE-GUIDE USING A GRATING IN A FABRY-PEROT ETALON CONFIGURATION

被引：3

作者：

VASEY, F ^{[1
]}

STAUFFER, JM ^{[1
]}

OPPLIGER, Y ^{[1
]}

REINHART, FK ^{[1
]}

机构：

[1] SWISS CTR ELECTR & MICROTECHNOL,CSEM,CH-2007 NEUCHATEL,SWITZERLAND

来源：

APPLIED OPTICS | 1991年 / 30卷 / 27期

关键词：

D O I：

10.1364/AO.30.003897

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We characterize an AlGaAs rib waveguide using a structure based on a third-order Bragg reflector fabricated by electron-beam lithography. The grating forms a resonant cavity with the sample's uncoated output facet, and we observe a Fabry-Perot etalon behavior superimposed on the Bragg reflector characteristics. We present transmitted intensity measurements as a function of wavelength and temperature. We derive results for waveguide refractive-index profile, loss coefficient, group effective index, effective-index wavelength dispersion, and effective-index temperature dispersion. An auxiliary prism on top of the grating allows us to couple light out of the waveguide into the air. Angular measurements of the outcoupled orders at different wavelengths confirm the wavelength dispersion measurements made on the Fabry-Perot etalon formed by the grating and the cleaved mirror.

引用

页码：3897 / 3906

页数：10

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