Block-Based Mode Decomposition in Few-Mode Fibers
A block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all pixels in the beam images. It allows for block...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/1/66 |
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| author | Chenyu Wang Jianyong Zhang Baorui Yan Shuchao Mi Guofang Fan Muguang Wang Peiying Zhang |
| author_facet | Chenyu Wang Jianyong Zhang Baorui Yan Shuchao Mi Guofang Fan Muguang Wang Peiying Zhang |
| author_sort | Chenyu Wang |
| collection | DOAJ |
| description | A block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all pixels in the beam images. It allows for blocks of any shape, such as triangles. In noise-free simulations, compared to the spatially degenerated mode decomposition (SPMD) algorithm, the BMD algorithm requires only 1% of the multiplication operations, thereby significantly increasing the computational efficiency while maintaining a high mode decomposition accuracy. In simulations with noise, increasing the signal-to-noise ratio (SNR) reduces decomposition errors across all configurations. The amplitude error of BMD can outperform SPMD by 15 dB. The experimental results show that BMD has a better performance than SPMD. |
| format | Article |
| id | doaj-art-6ed6b8c9a4474d4a8cb3499aaa7c2b66 |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-6ed6b8c9a4474d4a8cb3499aaa7c2b662025-01-24T13:46:23ZengMDPI AGPhotonics2304-67322025-01-011216610.3390/photonics12010066Block-Based Mode Decomposition in Few-Mode FibersChenyu Wang0Jianyong Zhang1Baorui Yan2Shuchao Mi3Guofang Fan4Muguang Wang5Peiying Zhang6Key Laboratory of All Optical Network & Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Laboratory of All Optical Network & Advanced Telecommunication Network, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaInstitute of Lightwave Technology, Beijing Jiaotong University, Beijing 100044, ChinaQingdao Institute of Software, College of Computer Science and Technology, China University of Petroleum (East China), Qingdao 266580, ChinaA block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore mode coefficients instead of all pixels in the beam images. It allows for blocks of any shape, such as triangles. In noise-free simulations, compared to the spatially degenerated mode decomposition (SPMD) algorithm, the BMD algorithm requires only 1% of the multiplication operations, thereby significantly increasing the computational efficiency while maintaining a high mode decomposition accuracy. In simulations with noise, increasing the signal-to-noise ratio (SNR) reduces decomposition errors across all configurations. The amplitude error of BMD can outperform SPMD by 15 dB. The experimental results show that BMD has a better performance than SPMD.https://www.mdpi.com/2304-6732/12/1/66mode decompositionfew-mode fibersfiber characterization |
| spellingShingle | Chenyu Wang Jianyong Zhang Baorui Yan Shuchao Mi Guofang Fan Muguang Wang Peiying Zhang Block-Based Mode Decomposition in Few-Mode Fibers Photonics mode decomposition few-mode fibers fiber characterization |
| title | Block-Based Mode Decomposition in Few-Mode Fibers |
| title_full | Block-Based Mode Decomposition in Few-Mode Fibers |
| title_fullStr | Block-Based Mode Decomposition in Few-Mode Fibers |
| title_full_unstemmed | Block-Based Mode Decomposition in Few-Mode Fibers |
| title_short | Block-Based Mode Decomposition in Few-Mode Fibers |
| title_sort | block based mode decomposition in few mode fibers |
| topic | mode decomposition few-mode fibers fiber characterization |
| url | https://www.mdpi.com/2304-6732/12/1/66 |
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