Series-coupled silicon racetrack resonators and the Vernier effect: theory and measurement

被引：107

作者：

Boeck, Robi ^{[1
]}

Jaeger, Nicolas A. F. ^{[1
]}

Rouger, Nicolas ^{[1
]}

Chrostowski, Lukas ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V5Z 1M9, Canada

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 24期

基金：

加拿大自然科学与工程研究理事会;

关键词：

REFRACTIVE-INDEX; PHOTONIC WIRES; WAVELENGTH; FILTERS;

D O I：

10.1364/OE.18.025151

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Silicon-on-insulator racetrack resonators can be used as multiplexers in wavelength division multiplexing applications. The free spectral range should be comparable to the span of the C-band so that a maximum number of channels can be multiplexed. However, the free spectral range is inversely proportional to the length of the resonator and, therefore, bending losses can become non-negligible. A viable alternative to increase the free spectral range is to use the Vernier effect. In this work, we present the theory of series-coupled racetrack resonators exhibiting the Vernier effect. We demonstrate the experimental performance of the device using silicon-on-insulator strip waveguides. The extended free spectral range is 36 nm and the interstitial peak suppression is from 9 dB to 17 dB. (C) 2010 Optical Society of America

引用

页码：25151 / 25157

页数：7