Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation
The Mach-Zehnder interferometer (MZI) can be used to test changes in the refractive index of sucrose solutions at different concentrations. However, the popularity of this measurement tool is limited by its substantial size and portability. Therefore, the MZI was integrated with a small fiber-optic...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2014/938693 |
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| author | Chien-Hsing Chen Chih-Yu Hsu Pei-Hsing Huang Jian-Neng Wang Wei-Te Wu |
| author_facet | Chien-Hsing Chen Chih-Yu Hsu Pei-Hsing Huang Jian-Neng Wang Wei-Te Wu |
| author_sort | Chien-Hsing Chen |
| collection | DOAJ |
| description | The Mach-Zehnder interferometer (MZI) can be used to test changes in the refractive index of sucrose solutions at different concentrations. However, the popularity of this measurement tool is limited by its substantial size and portability. Therefore, the MZI was integrated with a small fiber-optic waveguide component to develop an interferometer with fiber-optic characteristics, specifically a fiber-optic Mach-Zehnder interferometer (FO-MZI). Optical fiber must be processed to fabricate two optical coupling structures. The two optical coupling structures are a duplicate of the beam splitter, an optical component of the interferometer. Therefore, when the sensor length and the two optical coupling structures vary, the time or path for optical transmission in the sensor changes, thereby influencing the back-end interference signals. The researchers successfully developed an asymmetrical FO-MZI with sensing abilities. The spacing value between the troughs of the sensor length and interference signal exhibited an inverse relationship. In addition, image analysis was employed to examine the size-matching relationship between various sensor lengths and the coupling and decoupling structure. Furthermore, the spectral wavelength shift results measured using a refractive index sensor indicate that FO-MZIs with a sensor length of 38 mm exhibited excellent sensitivity, measuring 59.7 nm/RIU. |
| format | Article |
| id | doaj-art-630809ecabb2480c9689ddd8217cff92 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-630809ecabb2480c9689ddd8217cff922025-02-03T05:51:04ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772014-01-01201410.1155/2014/938693938693Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser IrradiationChien-Hsing Chen0Chih-Yu Hsu1Pei-Hsing Huang2Jian-Neng Wang3Wei-Te Wu4Department of Physics, National Chung Cheng University, Chiayi 62102, TaiwanDepartment of Biomechatronics Engineering, National Pingtung University of Science and Technology, Pingtung 912, TaiwanDepartment of Mechanical Engineering, National Pingtung University of Science and Technology, Pingtung 912, TaiwanDepartment of Construction Engineering, National Yunlin University of Science and Technology, Yunlin 640, TaiwanDepartment of Biomechatronics Engineering, National Pingtung University of Science and Technology, Pingtung 912, TaiwanThe Mach-Zehnder interferometer (MZI) can be used to test changes in the refractive index of sucrose solutions at different concentrations. However, the popularity of this measurement tool is limited by its substantial size and portability. Therefore, the MZI was integrated with a small fiber-optic waveguide component to develop an interferometer with fiber-optic characteristics, specifically a fiber-optic Mach-Zehnder interferometer (FO-MZI). Optical fiber must be processed to fabricate two optical coupling structures. The two optical coupling structures are a duplicate of the beam splitter, an optical component of the interferometer. Therefore, when the sensor length and the two optical coupling structures vary, the time or path for optical transmission in the sensor changes, thereby influencing the back-end interference signals. The researchers successfully developed an asymmetrical FO-MZI with sensing abilities. The spacing value between the troughs of the sensor length and interference signal exhibited an inverse relationship. In addition, image analysis was employed to examine the size-matching relationship between various sensor lengths and the coupling and decoupling structure. Furthermore, the spectral wavelength shift results measured using a refractive index sensor indicate that FO-MZIs with a sensor length of 38 mm exhibited excellent sensitivity, measuring 59.7 nm/RIU.http://dx.doi.org/10.1155/2014/938693 |
| spellingShingle | Chien-Hsing Chen Chih-Yu Hsu Pei-Hsing Huang Jian-Neng Wang Wei-Te Wu Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation International Journal of Antennas and Propagation |
| title | Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation |
| title_full | Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation |
| title_fullStr | Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation |
| title_full_unstemmed | Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation |
| title_short | Optical Coupling Structures of Fiber-Optic Mach-Zehnder Interferometers Using CO2 Laser Irradiation |
| title_sort | optical coupling structures of fiber optic mach zehnder interferometers using co2 laser irradiation |
| url | http://dx.doi.org/10.1155/2014/938693 |
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