Single-polarization dual-hollow-core anti-resonant fiber coupler by polarized mode filtered method

Hou, Donglian; Jia, Haoqiang; Wang, Xing; Sheng, Xinzhi; Xue, Lu; Chu, Paul K.; Lou, Shuqin

doi:10.1016/j.yofte.2024.103776

Optical Fiber Technology

2024

DOI: 10.1016/j.yofte.2024.103776

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Single-polarization dual-hollow-core anti-resonant fiber coupler by polarized mode filtered method

Donglian Hou,

Haoqiang Jia,

Xing Wang

et al.

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2024

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Cited by 2 publications

References 29 publications

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Broadband hollow-core single-polarization 3dB coupler based on a dual-hollow-core fiber embellished with semicircular silver nanowires by using localized surface plasmon resonance

Hou,

Lian,

et al. 2024

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Broadband hollow-core single-polarization 3dB coupler based on a dual-hollow-core fiber embellished with semicircular silver nanowires by using localized surface plasmon resonance

Hou,

Lian,

et al. 2024

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Dual-hollow-core anti-resonant fiber with silicon layers and nested resonant tubes for constructing a single-polarization 3 dB coupler

Hou,

Wang,

Lou

et al. 2024

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A novel dual-hollow-core anti-resonant fiber (DHC-ARF) with silicon layers and nested resonant tubes is proposed for constructing a 3 dB single-polarization coupler. High-index silicon layers are deposited inside four cladding tubes along the x-direction and then nested resonant tubes are introduced into these cladding tubes, which is beneficial to promote the mode coupling between the x-polarized fundamental mode and the dielectric mode in the silica/silicon tubes so as to achieve single-polarization characteristics of the DHC-ARF. The properties of the DHC-ARF are optimized using finite element method combined with perfectly matched layer as a boundary condition. By using a 1.51 cm long DHC-ARF, a single-polarization 3 dB coupler is constructed with a relatively wide bandwidth of 29 nm covering the wavelength range from 1530 nm to 1559 nm, in which the polarization extinction ratio (PER) is lower than -20 dB and the coupling ratio can be guaranteed within 50 ± 2%. This bandwidth is more than 2.6 times higher than the bandwidth of currently reported single-polarization coupler. At the wavelength of 1550 nm, the lowest PER reaches -74.8 dB and the loss of the coupler is as low as 0.33 dB.

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Single-polarization dual-hollow-core anti-resonant fiber coupler by polarized mode filtered method

Cited by 2 publications

References 29 publications

Broadband hollow-core single-polarization 3dB coupler based on a dual-hollow-core fiber embellished with semicircular silver nanowires by using localized surface plasmon resonance

Broadband hollow-core single-polarization 3dB coupler based on a dual-hollow-core fiber embellished with semicircular silver nanowires by using localized surface plasmon resonance

Dual-hollow-core anti-resonant fiber with silicon layers and nested resonant tubes for constructing a single-polarization 3 dB coupler

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