Grating couplers for thick SOI rib waveguides

被引：0
作者：
C. Alonso-Ramos
A. Ortega-Moñux
I. Molina-Fernández
P. Cheben
L. Zavargo-Peche
R. Halir
S. Janz
D.-X. Xu
N. Kim
B. Lamontagne
机构：
[1] ETSI Telecomunicación,Departamento Ingeniería de Comunicaciones
[2] Universidad de Málaga,Institute for Microstructural Sciences
[3] National Research Council of Canada,undefined
来源：
Optical and Quantum Electronics | 2012年 / 44卷
关键词：
Grating coupler; Planar waveguide; Rib waveguide; SOI; FT spectrometer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The use of grating couplers in high index contrast waveguides like silicon on insulator (SOI) offers several advantages over other coupling approaches, including better alignment tolerances and allowing for wafer-scale testing. The grating couplers were developed for nanometric SOI waveguides (Si-wires), and recently also for micrometric rib waveguides. In this paper we review our work in fiber-to-chip grating couplers for thick SOI rib waveguides, where a coupling efficiency of −2.2 dB was demonstrated experimentally. We also discuss the use of grating couplers to improve optical throughput (étendue) of a planar waveguide Fourier-Transform (FT) spectrometer implemented in thick rib waveguides.
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页码：535 / 540
页数：5
相关论文
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