An all-silicon passive optical diode.
Ontology highlight
ABSTRACT:
SUBMITTER: Fan L
PROVIDER: S-EPMC5563475 | biostudies-literature | 2012 Jan
REPOSITORIES: biostudies-literature
Publications
An all-silicon passive optical diode.
Fan Li L Wang Jian J Varghese Leo T LT Shen Hao H Niu Ben B Xuan Yi Y Weiner Andrew M AM Qi Minghao M
Science (New York, N.Y.) 20111222 6067
A passive optical diode effect would be useful for on-chip optical information processing but has been difficult to achieve. Using a method based on optical nonlinearity, we demonstrate a forward-backward transmission ratio of up to 28 decibels within telecommunication wavelengths. Our device, which uses two silicon rings 5 micrometers in radius, is passive yet maintains optical nonreciprocity for a broad range of input power levels, and it performs equally well even if the backward input power ...[more]
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