Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip
Optical neural networks (ONN) have become the most promising solution to replacing electronic neural networks, which have the advantages of large bandwidth, low energy consumption, strong parallel processing ability, and super high speed. Silicon-based micro-nano integrated photonic platforms have d...
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MDPI AG
2022-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/13/2136 |
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| author | Xu Liu Xudong Zhu Chunqing Wang Yifan Cao Baihang Wang Hanwen Ou Yizheng Wu Qixun Mei Jialong Zhang Zhe Cong Rentao Liu |
| author_facet | Xu Liu Xudong Zhu Chunqing Wang Yifan Cao Baihang Wang Hanwen Ou Yizheng Wu Qixun Mei Jialong Zhang Zhe Cong Rentao Liu |
| author_sort | Xu Liu |
| collection | DOAJ |
| description | Optical neural networks (ONN) have become the most promising solution to replacing electronic neural networks, which have the advantages of large bandwidth, low energy consumption, strong parallel processing ability, and super high speed. Silicon-based micro-nano integrated photonic platforms have demonstrated good compatibility with complementary metal oxide semiconductor (CMOS) processing. Therefore, without completely changing the existing silicon-based fabrication technology, optoelectronic hybrid devices or all-optical devices of better performance can be achieved on such platforms. To meet the requirements of smaller size and higher integration for silicon photonic computing, the topology of a four-channel coarse wavelength division multiplexer (CWDM) and an optical scattering unit (OSU) are inversely designed and optimized by Lumerical software. Due to the random optical power splitting ratio and incoherency, the intensities of different input signals from CWDM can be weighted and summed directly by the subsequent OSU to accomplish arbitrary multiply–accumulate (MAC) operations, therefore supplying the core foundation for scattering ONN architecture. |
| first_indexed | 2024-03-09T12:42:32Z |
| format | Article |
| id | doaj.art-18ec9cea42614d5daddfa4c4cbef7ca4 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T12:42:32Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-18ec9cea42614d5daddfa4c4cbef7ca42023-11-30T22:15:52ZengMDPI AGNanomaterials2079-49912022-06-011213213610.3390/nano12132136Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation ChipXu Liu0Xudong Zhu1Chunqing Wang2Yifan Cao3Baihang Wang4Hanwen Ou5Yizheng Wu6Qixun Mei7Jialong Zhang8Zhe Cong9Rentao Liu10National Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaNational Research Center for Optical Sensing/Communications Integrated Networking, Department of Electronics Engineering, Southeast University, Nanjing 210096, ChinaOptical neural networks (ONN) have become the most promising solution to replacing electronic neural networks, which have the advantages of large bandwidth, low energy consumption, strong parallel processing ability, and super high speed. Silicon-based micro-nano integrated photonic platforms have demonstrated good compatibility with complementary metal oxide semiconductor (CMOS) processing. Therefore, without completely changing the existing silicon-based fabrication technology, optoelectronic hybrid devices or all-optical devices of better performance can be achieved on such platforms. To meet the requirements of smaller size and higher integration for silicon photonic computing, the topology of a four-channel coarse wavelength division multiplexer (CWDM) and an optical scattering unit (OSU) are inversely designed and optimized by Lumerical software. Due to the random optical power splitting ratio and incoherency, the intensities of different input signals from CWDM can be weighted and summed directly by the subsequent OSU to accomplish arbitrary multiply–accumulate (MAC) operations, therefore supplying the core foundation for scattering ONN architecture.https://www.mdpi.com/2079-4991/12/13/2136optical neural network (ONN)multiply–accumulate (MAC) operationinverse designsilicon-on-insulator (SOI)metastructurecoarse wavelength division multiplexer (CWDM) |
| spellingShingle | Xu Liu Xudong Zhu Chunqing Wang Yifan Cao Baihang Wang Hanwen Ou Yizheng Wu Qixun Mei Jialong Zhang Zhe Cong Rentao Liu Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip Nanomaterials optical neural network (ONN) multiply–accumulate (MAC) operation inverse design silicon-on-insulator (SOI) metastructure coarse wavelength division multiplexer (CWDM) |
| title | Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip |
| title_full | Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip |
| title_fullStr | Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip |
| title_full_unstemmed | Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip |
| title_short | Silicon-Based Metastructure Optical Scattering Multiply–Accumulate Computation Chip |
| title_sort | silicon based metastructure optical scattering multiply accumulate computation chip |
| topic | optical neural network (ONN) multiply–accumulate (MAC) operation inverse design silicon-on-insulator (SOI) metastructure coarse wavelength division multiplexer (CWDM) |
| url | https://www.mdpi.com/2079-4991/12/13/2136 |
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