High-Order Exceptional Point-Based Rotation Sensing in Anti-Parity time Symmetric Microresonators
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arXiv
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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866916604434972672 |
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| author | Li, Wenxiu Li, Zelei Li, Jincheng Sun, Xin Yang, Zongqi Qin, Ce Huang, Xinyao Huang, Anping Zhang, Hao Xiao, Zhisong |
| author_facet | Li, Wenxiu Li, Zelei Li, Jincheng Sun, Xin Yang, Zongqi Qin, Ce Huang, Xinyao Huang, Anping Zhang, Hao Xiao, Zhisong |
| contents | Exceptional points (EPs), which arise from non-Hermitian systems, have been extensively investigated for the development of high-performance gyroscopes. However, operating a non-Hermitian gyroscope at high-order EP (HOEP) to achieve extreme performance requires strict and precise control of parameters. Here, we propose the design of an anti-parity-time (anti-PT) symmetric optical gyroscope operating at a fourth-order EP, achieving both ultra-sensitivity and high robustness. Our configuration exhibits eigenfrequency splitting two orders of magnitude higher than that of anti-PT gyroscopes operating at second-order EP. Furthermore, we demonstrate a significant reduction in angular random walk (ARW) under noise limits, compared to anti-parity symmetric gyroscopes based on second-order EP. Our results provide a novel approach for developing high-sensitivity rotation detection based on HOEPs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_05399 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-Order Exceptional Point-Based Rotation Sensing in Anti-Parity time Symmetric Microresonators Li, Wenxiu Li, Zelei Li, Jincheng Sun, Xin Yang, Zongqi Qin, Ce Huang, Xinyao Huang, Anping Zhang, Hao Xiao, Zhisong Optics Exceptional points (EPs), which arise from non-Hermitian systems, have been extensively investigated for the development of high-performance gyroscopes. However, operating a non-Hermitian gyroscope at high-order EP (HOEP) to achieve extreme performance requires strict and precise control of parameters. Here, we propose the design of an anti-parity-time (anti-PT) symmetric optical gyroscope operating at a fourth-order EP, achieving both ultra-sensitivity and high robustness. Our configuration exhibits eigenfrequency splitting two orders of magnitude higher than that of anti-PT gyroscopes operating at second-order EP. Furthermore, we demonstrate a significant reduction in angular random walk (ARW) under noise limits, compared to anti-parity symmetric gyroscopes based on second-order EP. Our results provide a novel approach for developing high-sensitivity rotation detection based on HOEPs. |
| title | High-Order Exceptional Point-Based Rotation Sensing in Anti-Parity time Symmetric Microresonators |
| topic | Optics |
| url | https://arxiv.org/abs/2502.05399 |