Hybrid photonic crystal fiber for highly sensitive temperature measurement
A hybrid photonic crystal fiber (PCF) is proposed and demonstrated for highly sensitive temperature measurement. The hybrid PCF is formed by selectively infiltrating liquid crystal 5CB into the first ring of air holes around one silica core of a twin-core PCF (TCPCF). In the modified TCPCF, one sili...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/141052 |
| _version_ | 1811694768222109696 |
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| author | Xu, Zhilin Li, Baocheng Hu, Dora Juan Juan Wu, Zhifang Ertman, Slawomir Wolinski, Tomasz Tong, Weijun Shum, Perry Ping |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Xu, Zhilin Li, Baocheng Hu, Dora Juan Juan Wu, Zhifang Ertman, Slawomir Wolinski, Tomasz Tong, Weijun Shum, Perry Ping |
| author_sort | Xu, Zhilin |
| collection | NTU |
| description | A hybrid photonic crystal fiber (PCF) is proposed and demonstrated for highly sensitive temperature measurement. The hybrid PCF is formed by selectively infiltrating liquid crystal 5CB into the first ring of air holes around one silica core of a twin-core PCF (TCPCF). In the modified TCPCF, one silica core guides light with a total internal reflection (TIR) mechanism, while the other silica core guides light through a photonic bandgap (PBG) mechanism, due to the infiltration of high refractive index 5CB. The co-existing of TIR and PBG waveguiding mechanisms in the TCPCF leads to a hybrid light guiding mechanism PCF, i.e. hybrid PCF. Theoretical analysis reveals that the TIR-guided core mode, PBG-guided core modes and 5CB channel modes in the hybrid PCF can concurrently propagate and interfere with each other, which is further verified by experimental results. Besides, experimental investigation on the temperature response of the hybrid PCF shows that the temperature sensitivities can be up to 4.91 nm °C−1 for nematic phase of 5CB, and −3.68 nm °C−1 for isotropic phase of 5CB, respectively. The proposed hybrid PCF is promising for applications of temperature-tunable optical filtering in optical fiber communication, sensing and laser systems. |
| first_indexed | 2024-10-01T07:12:49Z |
| format | Journal Article |
| id | ntu-10356/141052 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:12:49Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1410522020-06-03T09:10:56Z Hybrid photonic crystal fiber for highly sensitive temperature measurement Xu, Zhilin Li, Baocheng Hu, Dora Juan Juan Wu, Zhifang Ertman, Slawomir Wolinski, Tomasz Tong, Weijun Shum, Perry Ping School of Electrical and Electronic Engineering CNRS International NTU THALES Research Alliance Engineering::Electrical and electronic engineering Fiber Optics Sensors Liquid Crystal A hybrid photonic crystal fiber (PCF) is proposed and demonstrated for highly sensitive temperature measurement. The hybrid PCF is formed by selectively infiltrating liquid crystal 5CB into the first ring of air holes around one silica core of a twin-core PCF (TCPCF). In the modified TCPCF, one silica core guides light with a total internal reflection (TIR) mechanism, while the other silica core guides light through a photonic bandgap (PBG) mechanism, due to the infiltration of high refractive index 5CB. The co-existing of TIR and PBG waveguiding mechanisms in the TCPCF leads to a hybrid light guiding mechanism PCF, i.e. hybrid PCF. Theoretical analysis reveals that the TIR-guided core mode, PBG-guided core modes and 5CB channel modes in the hybrid PCF can concurrently propagate and interfere with each other, which is further verified by experimental results. Besides, experimental investigation on the temperature response of the hybrid PCF shows that the temperature sensitivities can be up to 4.91 nm °C−1 for nematic phase of 5CB, and −3.68 nm °C−1 for isotropic phase of 5CB, respectively. The proposed hybrid PCF is promising for applications of temperature-tunable optical filtering in optical fiber communication, sensing and laser systems. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2020-06-03T09:10:56Z 2020-06-03T09:10:56Z 2018 Journal Article Xu, Z., Li, B., Hu, D. J. J., Wu, Z., Ertman, S., Wolinski, T., . . . Shum, P. P. (2018). Hybrid photonic crystal fiber for highly sensitive temperature measurement. Journal of Optics, 20(7), 075801-. doi:10.1088/2040-8986/aaca4e 2040-8978 https://hdl.handle.net/10356/141052 10.1088/2040-8986/aaca4e 2-s2.0-85049390191 7 20 en Journal of Optics © 2018 IOP Publishing Ltd. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Fiber Optics Sensors Liquid Crystal Xu, Zhilin Li, Baocheng Hu, Dora Juan Juan Wu, Zhifang Ertman, Slawomir Wolinski, Tomasz Tong, Weijun Shum, Perry Ping Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title | Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title_full | Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title_fullStr | Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title_full_unstemmed | Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title_short | Hybrid photonic crystal fiber for highly sensitive temperature measurement |
| title_sort | hybrid photonic crystal fiber for highly sensitive temperature measurement |
| topic | Engineering::Electrical and electronic engineering Fiber Optics Sensors Liquid Crystal |
| url | https://hdl.handle.net/10356/141052 |
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