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Ultra-compact Si-SiO<sub>2</sub> microring resonator optical channel dropping filters

IEEE Photonics Technology Letters · 1998 · Vol. 10(4) · pp. 549–551

Brent E. Little✉(Massachusetts Institute of Technology)James Foresi(Massachusetts Institute of Technology)Günter Steinmeyer(Massachusetts Institute of Technology)E.R. Thoen(Massachusetts Institute of Technology)Sai T. Chu(Kanagawa Academy of Science and Technology)H. A. Haus(Massachusetts Institute of Technology)Erich P. Ippen(Massachusetts Institute of Technology)Lionel C. Kimerling(Massachusetts Institute of Technology)W. Greene(Hewlett-Packard (United States))

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Abstract

Compact optical channel dropping filters incorporating side-coupled ring resonators as small as 3 μm in radius are realized in silicon technology. Quality factors up to 250, and a free-spectral range (FSR) as large as 24 nm are measured. Such structures can be used as fundamental building blocks in more sophisticated optical signal processing devices.

Photonic and Optical Devices Advanced Fiber Laser Technologies Advanced Fiber Optic SensorsFree spectral rangeResonatorOptical filterMaterials scienceOptical ring resonatorsOptoelectronicsChannel (broadcasting)OpticsSiliconRADIUS

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Imaging topological edge states in silicon photonics