Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters
A series of reconfigurable compact photonic arbitrary power splitters are proposed based on the hybrid structure of silicon and Ge<sub>2</sub>Sb<sub>2</sub>Se<sub>4</sub>Te<sub>1</sub> (GSST), which is a new kind of non-volatile optical phase change ma...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/4/669 |
| _version_ | 1797477519542190080 |
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| author | Huan Yuan Jiagui Wu Jinping Zhang Xun Pu Zhenfu Zhang Yang Yu Junbo Yang |
| author_facet | Huan Yuan Jiagui Wu Jinping Zhang Xun Pu Zhenfu Zhang Yang Yu Junbo Yang |
| author_sort | Huan Yuan |
| collection | DOAJ |
| description | A series of reconfigurable compact photonic arbitrary power splitters are proposed based on the hybrid structure of silicon and Ge<sub>2</sub>Sb<sub>2</sub>Se<sub>4</sub>Te<sub>1</sub> (GSST), which is a new kind of non-volatile optical phase change material (O-PCM) with low absorption. Our pixelated meta-hybrid has an extremely small photonic integrated circuit (PIC) footprint with a size comparable to that of the most advanced electronic integrated circuits (EICs). The power-split ratio can be reconfigured in a completely digital manner through the amorphous and crystalline switching of the GSST material, which only coated less than one-fifth of the pattern allocation area. The target power–split ratio between the output channels can be arbitrarily reconfigured digitally with high precision and in the valuable C-band (1530–1560 nm) based on the analysis of three-dimensional finite-difference time-domain. The 1 × 2, 1 × 3, and 1 × 4 splitting configurations were all investigated with a variety of power–split ratios for each case, and the corresponding true value tables of GSST distribution are given. These non-volatile hybrid photonic splitters offer the advantages of an extremely small footprint and non-volatile digital programmability, which are favorable to the truly optoelectronic fusion chip. |
| first_indexed | 2024-03-09T21:18:50Z |
| format | Article |
| id | doaj.art-5ddb29f4254c48729d8004f9b20f205f |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T21:18:50Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-5ddb29f4254c48729d8004f9b20f205f2023-11-23T21:26:12ZengMDPI AGNanomaterials2079-49912022-02-0112466910.3390/nano12040669Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power SplittersHuan Yuan0Jiagui Wu1Jinping Zhang2Xun Pu3Zhenfu Zhang4Yang Yu5Junbo Yang6Center of Material Science, National University of Defense Technology, Changsha 410073, ChinaSchool of Physical Science and Technology, Southwest University, Chongqing 400715, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaCollege of Computer & Information Science, Southwest University, Chongqing 400715, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaCenter of Material Science, National University of Defense Technology, Changsha 410073, ChinaA series of reconfigurable compact photonic arbitrary power splitters are proposed based on the hybrid structure of silicon and Ge<sub>2</sub>Sb<sub>2</sub>Se<sub>4</sub>Te<sub>1</sub> (GSST), which is a new kind of non-volatile optical phase change material (O-PCM) with low absorption. Our pixelated meta-hybrid has an extremely small photonic integrated circuit (PIC) footprint with a size comparable to that of the most advanced electronic integrated circuits (EICs). The power-split ratio can be reconfigured in a completely digital manner through the amorphous and crystalline switching of the GSST material, which only coated less than one-fifth of the pattern allocation area. The target power–split ratio between the output channels can be arbitrarily reconfigured digitally with high precision and in the valuable C-band (1530–1560 nm) based on the analysis of three-dimensional finite-difference time-domain. The 1 × 2, 1 × 3, and 1 × 4 splitting configurations were all investigated with a variety of power–split ratios for each case, and the corresponding true value tables of GSST distribution are given. These non-volatile hybrid photonic splitters offer the advantages of an extremely small footprint and non-volatile digital programmability, which are favorable to the truly optoelectronic fusion chip.https://www.mdpi.com/2079-4991/12/4/669arbitrary power splitterinverse designphase change materialdigital nanophotonics |
| spellingShingle | Huan Yuan Jiagui Wu Jinping Zhang Xun Pu Zhenfu Zhang Yang Yu Junbo Yang Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters Nanomaterials arbitrary power splitter inverse design phase change material digital nanophotonics |
| title | Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters |
| title_full | Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters |
| title_fullStr | Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters |
| title_full_unstemmed | Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters |
| title_short | Non-Volatile Programmable Ultra-Small Photonic Arbitrary Power Splitters |
| title_sort | non volatile programmable ultra small photonic arbitrary power splitters |
| topic | arbitrary power splitter inverse design phase change material digital nanophotonics |
| url | https://www.mdpi.com/2079-4991/12/4/669 |
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