High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings
In this paper, we investigated the evolution of the dispersion curves of long-period fiber gratings (LPFGs) from room temperature down to 0 K. We considered gratings arc-induced in the SMF28 fiber and in two B/Ge co-doped fibers. Computer simulations were performed based on previously published expe...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/22/19/7119 |
| _version_ | 1827653068277153792 |
|---|---|
| author | Oleg V. Ivanov Paulo Caldas Gaspar Rego |
| author_facet | Oleg V. Ivanov Paulo Caldas Gaspar Rego |
| author_sort | Oleg V. Ivanov |
| collection | DOAJ |
| description | In this paper, we investigated the evolution of the dispersion curves of long-period fiber gratings (LPFGs) from room temperature down to 0 K. We considered gratings arc-induced in the SMF28 fiber and in two B/Ge co-doped fibers. Computer simulations were performed based on previously published experimental data. We found that the dispersion curves belonging to the lowest-order cladding modes are the most affected by the temperature changes, but those changes are minute when considering cladding modes with dispersion turning points (DTP) in the telecommunication windows. The temperature sensitivity is higher for gratings inscribed in the B/Ge co-doped fibers near DTP and the optimum grating period can be chosen at room temperature. A temperature sensitivity as high as −850 pm/K can be obtained in the 100–200 K temperature range, while a value of −170 pm/K is reachable at 20 K. |
| first_indexed | 2024-03-09T21:11:51Z |
| format | Article |
| id | doaj.art-32f8668bb350484baf0841da5d422cfd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T21:11:51Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-32f8668bb350484baf0841da5d422cfd2023-11-23T21:43:44ZengMDPI AGSensors1424-82202022-09-012219711910.3390/s22197119High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber GratingsOleg V. Ivanov0Paulo Caldas1Gaspar Rego2Ulyanovsk Branch of Kotel’nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, Ulitsa Goncharova 48, 432071 Ulyanovsk, RussiaEscola Superior de Tecnologia e Gestão, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalEscola Superior de Tecnologia e Gestão, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalIn this paper, we investigated the evolution of the dispersion curves of long-period fiber gratings (LPFGs) from room temperature down to 0 K. We considered gratings arc-induced in the SMF28 fiber and in two B/Ge co-doped fibers. Computer simulations were performed based on previously published experimental data. We found that the dispersion curves belonging to the lowest-order cladding modes are the most affected by the temperature changes, but those changes are minute when considering cladding modes with dispersion turning points (DTP) in the telecommunication windows. The temperature sensitivity is higher for gratings inscribed in the B/Ge co-doped fibers near DTP and the optimum grating period can be chosen at room temperature. A temperature sensitivity as high as −850 pm/K can be obtained in the 100–200 K temperature range, while a value of −170 pm/K is reachable at 20 K.https://www.mdpi.com/1424-8220/22/19/7119cryogenic temperatureoptical fiber sensorlong-period fiber gratingarc-induced gratingdispersion turning points |
| spellingShingle | Oleg V. Ivanov Paulo Caldas Gaspar Rego High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings Sensors cryogenic temperature optical fiber sensor long-period fiber grating arc-induced grating dispersion turning points |
| title | High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings |
| title_full | High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings |
| title_fullStr | High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings |
| title_full_unstemmed | High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings |
| title_short | High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings |
| title_sort | high sensitivity cryogenic temperature sensors based on arc induced long period fiber gratings |
| topic | cryogenic temperature optical fiber sensor long-period fiber grating arc-induced grating dispersion turning points |
| url | https://www.mdpi.com/1424-8220/22/19/7119 |
| work_keys_str_mv | AT olegvivanov highsensitivitycryogenictemperaturesensorsbasedonarcinducedlongperiodfibergratings AT paulocaldas highsensitivitycryogenictemperaturesensorsbasedonarcinducedlongperiodfibergratings AT gasparrego highsensitivitycryogenictemperaturesensorsbasedonarcinducedlongperiodfibergratings |