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Opt Express. 2011 Jan 17;19(2):698-703. doi: 10.1364/OE.19.000698.

Vertical-coupling optical interface for on-chip optical interconnection.

Author information

1
Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Aoba-ku, Sendai, Japan. yamada@ecei.tohoku.ac.jp

Abstract

We present a vertical-coupling optical interface with a grating coupler for transmitting and receiving optical signals between single-mode optical fibers and microphotonic waveguides with a view to realize on-chip optical interconnection. The optical interface consisting of a simple grating structure with a reflective mirror and an optical power combiner exhibits high optical coupling efficiency and wide tolerance range for the misalignment of optical fibers. The optical interface exhibits high coupling efficiency even if the optical input is almost vertical to the chip surface.

PMID:
21263609
[Indexed for MEDLINE]
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