Journal
OPTICS LETTERS
Volume 44, Issue 1, Pages 73-76Publisher
Optica Publishing Group
DOI: 10.1364/OL.44.000073
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Funding
- National Research Foundation Singapore (NRF) [NRF-CRP15-2015-02]
- National Natural Science Foundation of China (NSFC) [61474078]
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We report an aluminum nitride on insulator platform for mid-infrared (MIR) photonics applications beyond 3 mu m. Propagation loss and bending loss are studied, while functional devices such as directional couplers, multimode interferometers, and add/drop filters are demonstrated with high performance. The complementary metal-oxide-semiconductor-compatible aluminum nitride offers advantages ranging from a large transparency window, high thermal and chemical resistance, to piezoelectric tunability and three-dimensional integration capability. This platform can have synergy with other photonics platforms to enable novel applications for sensing and thermal imaging in MIR. (C) 2018 Optical Society of America
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