Vertical-coupling optical interface for on-chip optical interconnection

Hirohito Yamada, Michinao Nozawa, Masao Kinoshita, Keishi Ohashi

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)698-703
Number of pages6
JournalOptics Express
Issue number2
Publication statusPublished - 2011 Jan 17


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