Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth

doi:10.1088/1674-1056/accd54

中国物理B ›› 2023, Vol. 32 ›› Issue (10): 104210-104210.doi: 10.1088/1674-1056/accd54

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

收稿日期:2023-01-08 修回日期:2023-04-13 接受日期:2023-04-17 出版日期:2023-09-21 发布日期:2023-09-21
通讯作者: Jin-Hui Yuan E-mail:yuanjinhui81@163.com
基金资助:
Project supported by the National Key Research and Development Project of China (Grant No. 2019YFB2204001).

Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth

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

Received:2023-01-08 Revised:2023-04-13 Accepted:2023-04-17 Online:2023-09-21 Published:2023-09-21
Contact: Jin-Hui Yuan E-mail:yuanjinhui81@163.com
Supported by:
Project supported by the National Key Research and Development Project of China (Grant No. 2019YFB2204001).

摘要/Abstract

摘要： 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.

关键词: dual-core photonic crystal fiber, polarization beam splitter, extinction ratio, bandwidth

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.

Key words: dual-core photonic crystal fiber, polarization beam splitter, extinction ratio, bandwidth

中图分类号: (Birefringence, polarization)

42.81.Gs

42.68.Ay (Propagation, transmission, attenuation, and radiative transfer) 42.25.Bs (Wave propagation, transmission and absorption) 42.81.-i (Fiber optics)

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[J]. 中国物理B, 2023, 32(10): 104210-104210.

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Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth

Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth

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