Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film
Abstract A novel optical fiber hydrogen sensor based on the π-phase-shifted grating and partial coated Pd/Hf composite film is proposed and experimentally demonstrated in this paper. The hydrogen sensitive Pd/Hf film with the length of 4 mm is successfully deposited in the π-phase-shifted grating re...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-01-01
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| Series: | Photonic Sensors |
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| Online Access: | https://doi.org/10.1007/s13320-025-0750-8 |
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| author | Fan Zhang Fabian Buchfellner Wenbin Hu Wenxin Ao Qiang Bian Johannes Roths Minghong Yang |
| author_facet | Fan Zhang Fabian Buchfellner Wenbin Hu Wenxin Ao Qiang Bian Johannes Roths Minghong Yang |
| author_sort | Fan Zhang |
| collection | DOAJ |
| description | Abstract A novel optical fiber hydrogen sensor based on the π-phase-shifted grating and partial coated Pd/Hf composite film is proposed and experimentally demonstrated in this paper. The hydrogen sensitive Pd/Hf film with the length of 4 mm is successfully deposited in the π-phase-shifted grating region by the magnetron sputtering process and rotating fixture technology. Since the hydrogen sensitivity between the notch and flank wavelengths of the π-phase-shifted grating is different due to the partial coating only on the π-phase-shifted grating region, the relative shift between the notch and flank wavelengths is employed to characterize the hydrogen concentration in this paper. The hydrogen calibration results show that the sensor shows the good response and repeatability. At the temperature of 20 °C and the hydrogen concentration of 2%, the wavelength distance shifts of 200 nm and 500 nm Pd/Hf coatings are 12.6 pm and 33.5 pm, respectively. |
| format | Article |
| id | doaj-art-a5bbc91f3ef049b9ba512c7fa14b39d3 |
| institution | Kabale University |
| issn | 1674-9251 2190-7439 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Photonic Sensors |
| spelling | doaj-art-a5bbc91f3ef049b9ba512c7fa14b39d32025-01-26T12:21:21ZengSpringerOpenPhotonic Sensors1674-92512190-74392025-01-0115211110.1007/s13320-025-0750-8Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite FilmFan Zhang0Fabian Buchfellner1Wenbin Hu2Wenxin Ao3Qiang Bian4Johannes Roths5Minghong Yang6National Engineering Research Center for Optical Fiber Sensing Technology and NetworkPhotonics Lab, Munich University of Applied ScienceNational Engineering Research Center for Optical Fiber Sensing Technology and NetworkNational Engineering Research Center for Optical Fiber Sensing Technology and NetworkPhotonics Lab, Munich University of Applied SciencePhotonics Lab, Munich University of Applied ScienceNational Engineering Research Center for Optical Fiber Sensing Technology and NetworkAbstract A novel optical fiber hydrogen sensor based on the π-phase-shifted grating and partial coated Pd/Hf composite film is proposed and experimentally demonstrated in this paper. The hydrogen sensitive Pd/Hf film with the length of 4 mm is successfully deposited in the π-phase-shifted grating region by the magnetron sputtering process and rotating fixture technology. Since the hydrogen sensitivity between the notch and flank wavelengths of the π-phase-shifted grating is different due to the partial coating only on the π-phase-shifted grating region, the relative shift between the notch and flank wavelengths is employed to characterize the hydrogen concentration in this paper. The hydrogen calibration results show that the sensor shows the good response and repeatability. At the temperature of 20 °C and the hydrogen concentration of 2%, the wavelength distance shifts of 200 nm and 500 nm Pd/Hf coatings are 12.6 pm and 33.5 pm, respectively.https://doi.org/10.1007/s13320-025-0750-8Fiber-optic hydrogen sensorPd/Hf composite filmπ-phase-shifted gratingmagnetron sputteringtemperature decoupling |
| spellingShingle | Fan Zhang Fabian Buchfellner Wenbin Hu Wenxin Ao Qiang Bian Johannes Roths Minghong Yang Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film Photonic Sensors Fiber-optic hydrogen sensor Pd/Hf composite film π-phase-shifted grating magnetron sputtering temperature decoupling |
| title | Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film |
| title_full | Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film |
| title_fullStr | Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film |
| title_full_unstemmed | Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film |
| title_short | Optical Fiber Hydrogen Sensor Based on π-Phase-Shifted Grating and Sputtered Pd/Hf Composite Film |
| title_sort | optical fiber hydrogen sensor based on π phase shifted grating and sputtered pd hf composite film |
| topic | Fiber-optic hydrogen sensor Pd/Hf composite film π-phase-shifted grating magnetron sputtering temperature decoupling |
| url | https://doi.org/10.1007/s13320-025-0750-8 |
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