Wideband subwavelength gratings for coupling between silicon-on-insulator waveguides and optical fibers
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AbstractWe propose and experimentally demonstrate a novel subwavelength grating coupler on silicon-on-insulator, for coupling to optical fibers with a wide optical bandwidth. Theoretical analysis and design optimization of the coupler are described. About 73 nm 1 dB bandwidth was experimentally demonstrated with -5.6 dB coupling efficiency. Better than -3.4 dB efficiency with 86 nm 1 dB bandwidth is predicted for these structures with optimized buried oxide thickness. (c) 2012 Optical Society of America
All Author(s) ListChen X, Xu K, Cheng ZZ, Fung CKY, Tsang HK
Journal nameOptics Letters
Year2012
Month9
Day1
Volume Number37
Issue Number17
PublisherOptical Society of America
Pages3483 - 3485
ISSN0146-9592
eISSN1539-4794
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesOptics; OPTICS

Last updated on 2020-17-11 at 01:08