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Proceedings Paper

On-chip silicon-based waveguide with light guiding in low-index core materials
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Paper Abstract

A new on-chip silicon-based Bragg cladding waveguide with full CMOS compatibility is developed. This novel optical waveguide has a low refractive index core (SiO2) surrounded by a 1D photonic crystal cladding. The cladding consists of several dielectric bilayers, where each bilayer consists of a high index-contrast pair of layers of Si and Si3N4. This new waveguide guides light based on omnidirectional reflection, reflecting light at any angle or polarization back into the core. Its fabrication is fully compatible with current microelectronics processes. In principle, a core of any low-index material can be realized with our novel structure, including air. Potential applications include tight turning radii, high power transmission, nonlinear properties engineering and biomaterials sensors on silicon chip.

Paper Details

Date Published: 7 March 2005
PDF: 7 pages
Proc. SPIE 5730, Optoelectronic Integration on Silicon II, (7 March 2005); doi: 10.1117/12.589911
Show Author Affiliations
Yasha Yi, Massachusetts Institute of Technology (United States)
Peter Bermel, Massachusetts Institute of Technology (United States)
Shoji Akiyama, Massachusetts Institute of Technology (United States)
Xiaoman Duan, Massachusetts Institute of Technology (United States)
Lionel C. Kimerling, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 5730:
Optoelectronic Integration on Silicon II
Joel A. Kubby; Ghassan E. Jabbour, Editor(s)

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