Journal
OPTICS EXPRESS
Volume 21, Issue 22, Pages 26557-26563Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.026557
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Funding
- National Science Foundation [ECCS-0335765]
- CIAN (Center for Integrated Access Networks) [EEC-0812072]
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We describe a novel approach for CMOS-compatible passively temperature insensitive silicon based optical devices using titanium oxide cladding which has a negative thermo-optic (TO) effect. We engineer the mode confinement in Si and TiO2 such that positive TO of Si is exactly cancelled out by negative TO of TiO2. We demonstrate robust operation of the resulting device over 35 degrees. (C) 2013 Optical Society of America
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