Wavelength-Dependent Model of a Ring Resonator Sensor Excited by a Directional Coupler

被引：25

作者：

Delage, Andre ^{[1
]}

Xu, Dan-Xia ^{[1
]}

McKinnon, Ross W. ^{[1
]}

Post, Edith ^{[1
]}

Waldron, Philip ^{[1
]}

Lapointe, Jean ^{[1
]}

Storey, Craig ^{[1
]}

Densmore, Adam ^{[1
]}

Janz, Siegfried ^{[1
]}

Lamontagne, Boris ^{[1
]}

Cheben, Pavel ^{[1
]}

Schmid, Jens H. ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 09期

关键词：

Guided wave; integrated optics devices; photonic integrated circuits; ring resonator; sensors; MICRORING RESONATORS; PROPAGATION LOSS; WAVE-GUIDES; INSULATOR; LOSSES; BENDS;

D O I：

10.1109/JLT.2008.929427

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 spectral characteristics of a ring resonator made of Si photonic wires are modeled using mode expansion of super-modes of the directional coupler. The influence of the coupling coefficient, loss factor and waveguide dispersion on the spectral features are analyzed in detail. The model is then compared with the experimental data of a ring resonator designed for sensing purposes. The model that includes a wavelength dependence on coupling length reproduces the large variations of the envelope of the experimental spectrum, when coupling coefficient cover its full range from 0 to 1. Fitting parameters explain the details of the experimental spectrum and contribute to the sensor optimization, as well as illustrating general guidelines for ring resonator design.

引用

页码：1172 / 1180

页数：9

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