A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band
In this paper, a novel gold film-coated V-shape dual-core photonic crystal fiber (V-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The coupling lengths of the X-polarization (X-pol) and Y-polarization (Y-pol) and the corresponding coupling length rati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/2/496 |
| _version_ | 1797412570886307840 |
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| author | Yuwei Qu Jinhui Yuan Shi Qiu Xian Zhou Feng Li Binbin Yan Qiang Wu Kuiru Wang Xinzhu Sang Keping Long Chongxiu Yu |
| author_facet | Yuwei Qu Jinhui Yuan Shi Qiu Xian Zhou Feng Li Binbin Yan Qiang Wu Kuiru Wang Xinzhu Sang Keping Long Chongxiu Yu |
| author_sort | Yuwei Qu |
| collection | DOAJ |
| description | In this paper, a novel gold film-coated V-shape dual-core photonic crystal fiber (V-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The coupling lengths of the X-polarization (X-pol) and Y-polarization (Y-pol) and the corresponding coupling length ratio of the proposed V-DC-PCF PBS without gold film and with gold film are compared. The fiber structure parameters and thickness of the gold film are optimized through investigating their effects on the coupling lengths and coupling length ratio. As the propagation length increases, the normalized output powers of the X-pol and Y-pol of the proposed V-DC-PCF PBS at the three wavelengths 1.610, 1.631, and 1.650 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> are demonstrated. The relationships between the extinction ratio (<inline-formula><math display="inline"><semantics><mrow><mi>E</mi><mi>R</mi></mrow></semantics></math></inline-formula>), insertion loss (<inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi></mrow></semantics></math></inline-formula>) and wavelength for the three splitting lengths (<inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi><mi>s</mi></mrow></semantics></math></inline-formula>) 188, 185, and 182 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> are investigated. Finally, it is demonstrated that for the proposed V-DC-PCF PBS, the optimal <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi></mrow></semantics></math></inline-formula> is 188 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula>, the <inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi><mi>s</mi></mrow></semantics></math></inline-formula> of the X-pol and Y-pol are less than 0.22 dB, and the splitting bandwidth (<inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>B</mi></mrow></semantics></math></inline-formula>) can cover the E + S + C + L + U band. The proposed V-DC-PCF PBS has the ultra-short <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi></mrow></semantics></math></inline-formula>, ultra-wide <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>B</mi></mrow></semantics></math></inline-formula>, and ultra-low <inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi></mrow></semantics></math></inline-formula>, so it is expected to have important applications in the laser, sensing, and dense wavelength division multiplexing systems. |
| first_indexed | 2024-03-09T05:04:03Z |
| format | Article |
| id | doaj.art-71c1cff75a1141f6ade6507f8d587ff4 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T05:04:03Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-71c1cff75a1141f6ade6507f8d587ff42023-12-03T12:56:27ZengMDPI AGSensors1424-82202021-01-0121249610.3390/s21020496A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U BandYuwei Qu0Jinhui Yuan1Shi Qiu2Xian Zhou3Feng Li4Binbin Yan5Qiang Wu6Kuiru Wang7Xinzhu Sang8Keping Long9Chongxiu Yu10State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaResearch Center for Convergence Networks and Ubiquitous Services, University of Science & Technology Beijing (USTB), Beijing 100083, ChinaPhotonics Research Centre, Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong KongState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaDepartment of Physics and Electrical Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UKState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaResearch Center for Convergence Networks and Ubiquitous Services, University of Science & Technology Beijing (USTB), Beijing 100083, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaIn this paper, a novel gold film-coated V-shape dual-core photonic crystal fiber (V-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The coupling lengths of the X-polarization (X-pol) and Y-polarization (Y-pol) and the corresponding coupling length ratio of the proposed V-DC-PCF PBS without gold film and with gold film are compared. The fiber structure parameters and thickness of the gold film are optimized through investigating their effects on the coupling lengths and coupling length ratio. As the propagation length increases, the normalized output powers of the X-pol and Y-pol of the proposed V-DC-PCF PBS at the three wavelengths 1.610, 1.631, and 1.650 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> are demonstrated. The relationships between the extinction ratio (<inline-formula><math display="inline"><semantics><mrow><mi>E</mi><mi>R</mi></mrow></semantics></math></inline-formula>), insertion loss (<inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi></mrow></semantics></math></inline-formula>) and wavelength for the three splitting lengths (<inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi><mi>s</mi></mrow></semantics></math></inline-formula>) 188, 185, and 182 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula> are investigated. Finally, it is demonstrated that for the proposed V-DC-PCF PBS, the optimal <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi></mrow></semantics></math></inline-formula> is 188 <inline-formula><math display="inline"><semantics><mrow><mi mathvariant="sans-serif">μ</mi><mi mathvariant="normal">m</mi></mrow></semantics></math></inline-formula>, the <inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi><mi>s</mi></mrow></semantics></math></inline-formula> of the X-pol and Y-pol are less than 0.22 dB, and the splitting bandwidth (<inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>B</mi></mrow></semantics></math></inline-formula>) can cover the E + S + C + L + U band. The proposed V-DC-PCF PBS has the ultra-short <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>L</mi></mrow></semantics></math></inline-formula>, ultra-wide <inline-formula><math display="inline"><semantics><mrow><mi>S</mi><mi>B</mi></mrow></semantics></math></inline-formula>, and ultra-low <inline-formula><math display="inline"><semantics><mrow><mi>I</mi><mi>L</mi></mrow></semantics></math></inline-formula>, so it is expected to have important applications in the laser, sensing, and dense wavelength division multiplexing systems.https://www.mdpi.com/1424-8220/21/2/496V-shape dual-core photonic crystal fiberpolarization beam splittersurface plasmon resonance effectextinction ratioinsertion loss |
| spellingShingle | Yuwei Qu Jinhui Yuan Shi Qiu Xian Zhou Feng Li Binbin Yan Qiang Wu Kuiru Wang Xinzhu Sang Keping Long Chongxiu Yu A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band Sensors V-shape dual-core photonic crystal fiber polarization beam splitter surface plasmon resonance effect extinction ratio insertion loss |
| title | A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band |
| title_full | A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band |
| title_fullStr | A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band |
| title_full_unstemmed | A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band |
| title_short | A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band |
| title_sort | novel gold film coated v shape dual core photonic crystal fiber polarization beam splitter covering the e s c l u band |
| topic | V-shape dual-core photonic crystal fiber polarization beam splitter surface plasmon resonance effect extinction ratio insertion loss |
| url | https://www.mdpi.com/1424-8220/21/2/496 |
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