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在纳米级碳化硅波导上实现多功能全光数据处理。

Realizing multi-functional all-optical data processing on nanoscale SiC waveguides.

作者信息

Syu Shih-Chang, Cheng Chih-Hsien, Wang Huai-Yung, Chi Yu-Chieh, Wu Chih-I, Lin Gong-Ru

机构信息

Graduate Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University (NTU), No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan, Republic of China.

出版信息

Sci Rep. 2018 Oct 5;8(1):14859. doi: 10.1038/s41598-018-33073-y.

DOI:10.1038/s41598-018-33073-y
PMID:30291267
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6173700/
Abstract

All-optical logics are realized on nanoscale SiC waveguides with add-drop micro-ring functionality, including the TE/TM polarized data decoding, the dual-port Kerr switching and gating beyond 12 Gbit/s. With employing the C-C bond enriched SiC thin film upon thermal oxide, the nonlinear refractive index of up to 2.44 × 10 cm/W enables the asymmetric waveguide with polarization distinguishable transmission, which provides a polarization-selectivity to discreminate the TE/TM polarized data decoding with an nearly 9-dB extinction ratio. The TE/TM polarized decoding performance is comparable with a state-of-the-art fiberized in-line polarizer. The complementary transmission in the bus waveguide port facilitates the dual-port Kerr switching for data format conversion/inversion in both add/drop channels. Owing to the TE/TM polarization discriminated throughput, the asymmetric add-drop waveguide micro-ring also permits all-optical AND logic gating functions, where the ON-state outputs only if the pump bit is set at ON state and the probe bit with matched polarization. These results reveal the multi-functionality of the nanoscale SiC add-drop micro-ring waveguide for future photonic logics on chip.

摘要

全光逻辑是在具有分插微环功能的纳米级碳化硅波导上实现的，包括TE/TM偏振数据解码、双端口克尔开关以及超过12 Gbit/s的选通。通过在热氧化物上采用富含C-C键的碳化硅薄膜，高达2.44×10⁻⁴ cm²/W的非线性折射率实现了具有偏振可区分传输的非对称波导，这为区分TE/TM偏振数据解码提供了偏振选择性，消光比接近9 dB。TE/TM偏振解码性能与最先进的光纤在线偏振器相当。总线波导端口中的互补传输有助于在分插通道中进行双端口克尔开关，以实现数据格式转换/反转。由于TE/TM偏振区分吞吐量，非对称分插波导微环还允许全光与逻辑选通功能，即仅当泵浦比特设置为导通状态且探测比特具有匹配偏振时，导通状态才会输出。这些结果揭示了纳米级碳化硅分插微环波导在未来片上光子逻辑中的多功能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/12f0dffe5798/41598_2018_33073_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/567a779c01e0/41598_2018_33073_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/b8c1c9ff3b98/41598_2018_33073_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/6cdc1e61a404/41598_2018_33073_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/0d45aa01b8bf/41598_2018_33073_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/e2baa2a9c1ed/41598_2018_33073_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/9dad94420c5b/41598_2018_33073_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/b49cdf75f038/41598_2018_33073_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/12f0dffe5798/41598_2018_33073_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/567a779c01e0/41598_2018_33073_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/b8c1c9ff3b98/41598_2018_33073_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/6cdc1e61a404/41598_2018_33073_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/0d45aa01b8bf/41598_2018_33073_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/e2baa2a9c1ed/41598_2018_33073_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/9dad94420c5b/41598_2018_33073_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/b49cdf75f038/41598_2018_33073_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3633/6173700/12f0dffe5798/41598_2018_33073_Fig8_HTML.jpg

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