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With the Si-rich SiN<jats:sub>x<\/jats:sub> micro-ring based optical Kerr switch, we demonstrate for the first time the wavelength and format conversion of optical on-off-keying data with a bit-rate of 12\u2005Gbit\/s. The field-resonant nonlinear Kerr effect enhances the transient refractive index change when coupling the optical data-stream into the micro-ring through the bus waveguide. This effectively red-shifts the notched dip wavelength to cause the format preserved or inversed conversion of data carried by the on-resonant or off-resonant probe, respectively. The Si quantum dots doped Si-rich SiN<jats:sub>x<\/jats:sub> strengthens its nonlinear Kerr coefficient by two-orders of magnitude higher than that of bulk Si or Si<jats:sub>3<\/jats:sub>N<jats:sub>4<\/jats:sub>. The wavelength-converted and cross-amplitude-modulated probe data-stream at up to 12-Gbit\/s through the Si-rich SiN<jats:sub>x<\/jats:sub> micro-ring with penalty of \u22127\u2005dB on transmission has shown very promising applicability to all-optical communication networks.<\/jats:p>","DOI":"10.1038\/srep09611","type":"journal-article","created":{"date-parts":[[2015,4,29]],"date-time":"2015-04-29T15:41:12Z","timestamp":1430322072000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":75,"title":["Si-rich SiNx based Kerr switch enables optical data conversion up to 12\u2005Gbit\/s"],"prefix":"10.1038","volume":"5","author":[{"given":"Gong-Ru","family":"Lin","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheng-Pin","family":"Su","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chung-Lun","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yung-Hsiang","family":"Lin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo-Ji","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huai-Yung","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng-Ting","family":"Tsai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chih-I","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu-Chieh","family":"Chi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2015,4,29]]},"reference":[{"key":"BFsrep09611_CR1","doi-asserted-by":"publisher","first-page":"303","DOI":"10.1038\/nphoton.2007.84","volume":"1","author":"R Kirchain","year":"2007","unstructured":"Kirchain, R. & Kimerling, L. 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