Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials
Abstract Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip classical and quantum optical technologies [1, 2]. Thus far, carrier modulation and thermo-optical effect are the chosen p...
| Main Authors: | , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Springer Nature Singapore
2022
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| Online Access: | https://hdl.handle.net/1721.1/146051 |
| _version_ | 1826192541550116864 |
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| author | Ríos, Carlos Du, Qingyang Zhang, Yifei Popescu, Cosmin-Constantin Shalaginov, Mikhail Y. Miller, Paul Roberts, Christopher Kang, Myungkoo Richardson, Kathleen A. Gu, Tian Vitale, Steven A. Hu, Juejun |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Ríos, Carlos Du, Qingyang Zhang, Yifei Popescu, Cosmin-Constantin Shalaginov, Mikhail Y. Miller, Paul Roberts, Christopher Kang, Myungkoo Richardson, Kathleen A. Gu, Tian Vitale, Steven A. Hu, Juejun |
| author_sort | Ríos, Carlos |
| collection | MIT |
| description | Abstract
Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip classical and quantum optical technologies [1, 2]. Thus far, carrier modulation and thermo-optical effect are the chosen phenomena for ultrafast and low-loss phase shifters, respectively; however, the state and information they carry are lost once the power is turned off—they are volatile. The volatility not only compromises energy efficiency due to their demand for constant power supply, but also precludes them from emerging applications such as in-memory computing. To circumvent this limitation, we introduce a phase shifting mechanism that exploits the nonvolatile refractive index modulation upon structural phase transition of Sb2Se3, a bi-state transparent phase change material (PCM). A zero-static power and electrically-driven phase shifter is realized on a CMOS-backend silicon-on-insulator platform, featuring record phase modulation up to 0.09 π/µm and a low insertion loss of 0.3 dB/π, which can be further improved upon streamlined design. Furthermore, we demonstrate phase and extinction ratio trimming of ring resonators and pioneer a one-step partial amorphization scheme to enhance speed and energy efficiency of PCM devices. A diverse cohort of programmable photonic devices is demonstrated based on the ultra-compact PCM phase shifter. |
| first_indexed | 2024-09-23T09:20:03Z |
| format | Article |
| id | mit-1721.1/146051 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:20:03Z |
| publishDate | 2022 |
| publisher | Springer Nature Singapore |
| record_format | dspace |
| spelling | mit-1721.1/1460512023-06-30T15:25:16Z Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials Ríos, Carlos Du, Qingyang Zhang, Yifei Popescu, Cosmin-Constantin Shalaginov, Mikhail Y. Miller, Paul Roberts, Christopher Kang, Myungkoo Richardson, Kathleen A. Gu, Tian Vitale, Steven A. Hu, Juejun Massachusetts Institute of Technology. Department of Materials Science and Engineering Lincoln Laboratory MIT Materials Research Laboratory Abstract Optical phase shifters constitute the fundamental building blocks that enable programmable photonic integrated circuits (PICs)—the cornerstone of on-chip classical and quantum optical technologies [1, 2]. Thus far, carrier modulation and thermo-optical effect are the chosen phenomena for ultrafast and low-loss phase shifters, respectively; however, the state and information they carry are lost once the power is turned off—they are volatile. The volatility not only compromises energy efficiency due to their demand for constant power supply, but also precludes them from emerging applications such as in-memory computing. To circumvent this limitation, we introduce a phase shifting mechanism that exploits the nonvolatile refractive index modulation upon structural phase transition of Sb2Se3, a bi-state transparent phase change material (PCM). A zero-static power and electrically-driven phase shifter is realized on a CMOS-backend silicon-on-insulator platform, featuring record phase modulation up to 0.09 π/µm and a low insertion loss of 0.3 dB/π, which can be further improved upon streamlined design. Furthermore, we demonstrate phase and extinction ratio trimming of ring resonators and pioneer a one-step partial amorphization scheme to enhance speed and energy efficiency of PCM devices. A diverse cohort of programmable photonic devices is demonstrated based on the ultra-compact PCM phase shifter. 2022-10-31T13:18:45Z 2022-10-31T13:18:45Z 2022-10-26 2022-10-30T04:20:02Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146051 PhotoniX. 2022 Oct 26;3(1):26 PUBLISHER_CC en https://doi.org/10.1186/s43074-022-00070-4 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Nature Singapore Springer Nature Singapore |
| spellingShingle | Ríos, Carlos Du, Qingyang Zhang, Yifei Popescu, Cosmin-Constantin Shalaginov, Mikhail Y. Miller, Paul Roberts, Christopher Kang, Myungkoo Richardson, Kathleen A. Gu, Tian Vitale, Steven A. Hu, Juejun Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title | Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title_full | Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title_fullStr | Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title_full_unstemmed | Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title_short | Ultra-compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| title_sort | ultra compact nonvolatile phase shifter based on electrically reprogrammable transparent phase change materials |
| url | https://hdl.handle.net/1721.1/146051 |
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