Grating-coupled silicon microring resonators

被引：59

作者：

Shi, W. ^{[1
]}

Wang, X. ^{[1
]}

Zhang, W. ^{[1
]}

Yun, H. ^{[1
]}

Lin, C. ^{[1
]}

Chrostowski, L. ^{[1
]}

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

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 12期

基金：

加拿大自然科学与工程研究理事会;

关键词：

CMOS integrated circuits; diffraction gratings; elemental semiconductors; integrated optics; integrated optoelectronics; microcavities; micro-optics; optical fibre couplers; optical filters; Q-factor; silicon; silicon-on-insulator;

D O I：

10.1063/1.3696082

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We propose to integrate grating-assisted asymmetric couplers with microring resonators for selective resonance excitation and control of coupling efficiency. A grating-coupled microring add-drop filter is experimentally demonstrated using a silicon-on-insulator technology compatible with complementary metal-oxide-semiconductor processing. A dominant longitudinal mode with a side-mode suppression ratio of 8 dB has been obtained across a broad spectral range of over 130 nm. The selected mode shows an out-of-band-rejection ratio of 19 dB and a quality factor (Q) of 25 000. The concept of integrating grating-assisted couplers for mode selectivity can be applied to other microring-based devices for high-Q, single-mode operations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3696082]

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页数：4

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