| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth |
| Yun-Peng Wei(魏云鹏)1, Jin-Hui Yuan(苑金辉)1,2,†, Yu-Wei Qu(屈玉玮)1, Shi Qiu(邱石)1, Xian Zhou(周娴)2, Bin-Bin Yan(颜玢玢)1, Kui-Ru Wang(王葵如)1, Xin-Zhu Sang(桑新柱)1, and Chong-Xiu Yu(余重秀)1 |
1 State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;
2 Research Center for Convergence Networks and Ubiquitous Services, University of Science&Technology Beijing(USTB), Beijing 100083, China |
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Abstract A novel polarization beam splitter (PBS) based on dual-core photonic crystal fiber (DC-PCF) is proposed in this work. The proposed DC-PCF PBS contains two kinds of lattices and three kinds of air holes to form the asymmetrical elliptic dual-core structure. By using the full-vector finite element method, the propagation characteristics of the proposed DC-PCF PBS are investigated. The simulation results show that the bandwidth of the proposed DC-PCF PBS can reach to 340 nm, which covers the S + C + L + U communication bands, the shortest splitting length is 1.97 mm, and the maximum extinction ratio appears near wavelength 1550 nm. Moreover, the insertion loss of the proposed DC-PCF PBS is very low. It is believed that the proposed DC-PCF PBS has important applications in the field of all-optical communication and network.
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Received: 08 January 2023
Revised: 13 April 2023
Accepted manuscript online: 17 April 2023
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PACS:
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42.81.Gs
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(Birefringence, polarization)
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42.68.Ay
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(Propagation, transmission, attenuation, and radiative transfer)
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42.25.Bs
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(Wave propagation, transmission and absorption)
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42.81.-i
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(Fiber optics)
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| Fund: Project supported by the National Key Research and Development Project of China (Grant No. 2019YFB2204001). |
Corresponding Authors:
Jin-Hui Yuan
E-mail: yuanjinhui81@163.com
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Cite this article:
Yun-Peng Wei(魏云鹏), Jin-Hui Yuan(苑金辉), Yu-Wei Qu(屈玉玮), Shi Qiu(邱石), Xian Zhou(周娴), Bin-Bin Yan(颜玢玢), Kui-Ru Wang(王葵如), Xin-Zhu Sang(桑新柱), and Chong-Xiu Yu(余重秀) Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth 2023 Chin. Phys. B 32 104210
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