1. Design of a photonic crystal fiber polarization beam splitter with simple structure and ultra-wide bandwidth.
- Author
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Wei, Yun-Peng, Yuan, Jin-Hui, Qu, Yu-Wei, Qiu, Shi, Zhou, Xian, Yan, Bin-Bin, Wang, Kui-Ru, Sang, Xin-Zhu, and Yu, Chong-Xiu
- Subjects
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PHOTONIC crystal fibers , *BEAM splitters , *BANDWIDTHS , *FINITE element method , *TELECOMMUNICATION systems , *INSERTION loss (Telecommunication) - 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. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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