Low propagation loss silicon-on-sapphire waveguides for the mid-infrared

Fangxin Li*, Stuart D. Jackson, Christian Grillet, Eric Magi, Darren Hudson, Steven J. Madden, Yashodhan Moghe, Christopher O'Brien, Andrew Read, Steven G. Duvall, Peter Atanackovic, Benjamin J. Eggleton, David J. Moss

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

144 Citations (Scopus)


We report record low loss silicon-on-sapphire nanowires for applications to mid infrared optics. We achieve propagation losses as low as 0.8dB/cm at λ = 1550nm, ∼1.1 to 1.4dB/cm at λ = 2080nm and < 2dB/cm at λ = 5.18 μm.

Original languageEnglish
Pages (from-to)15212-15220
Number of pages9
JournalOptics Express
Issue number16
Publication statusPublished - 1 Aug 2011
Externally publishedYes


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