Abstract
A long-period fiber grating (LPFG) structure based on D-shaped fiber is proposed, where a graphene oxide (GO) film layer is deposited on the fiber by the dipping method to jointly construct a new humidity sensor. The D-shaped fiber structure can provide a stronger evanescent field than conventional fibers, and therefore offer much higher sensitivity. The maximum average sensitivity achieved by the sensor in the range of ambient humidity of 20-80% RH (relative humidity) is -0.1908 nm/% RH, and the linearity is 0.998. The experimental results show that the humidity sensor has higher response sensitivity, and improved linear response characteristics. It provides a beneficial exploration for the development of low-cost, easy-to-manufacture, and highly sensitive fiber-optic humidity sensors.
| Original language | English |
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| Title of host publication | 2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) |
| Publisher | IEEE |
| Pages | 300-304 |
| Number of pages | 5 |
| Edition | 13th |
| ISBN (Electronic) | 9781665410441 |
| ISBN (Print) | 9781665410458 |
| DOIs | |
| Publication status | Published - Dec 2022 |
| Event | 2022 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) - Dr. António Cupertino de Miranda Centro de Congressos, Porto, Portugal Duration: 20 Jul 2022 → 22 Jul 2022 Conference number: 13th https://csndsp2022.av.it.pt/ |
Conference
| Conference | 2022 13th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP) |
|---|---|
| Abbreviated title | CSNDSP 2022 |
| Country/Territory | Portugal |
| City | Porto |
| Period | 20/07/22 → 22/07/22 |
| Internet address |
Keywords
- Fabrication
- Optical fibers
- Optical fiber sensors
- Sensitivity
- Linearity
- Humidity
- Optical fiber networks
- Fiber optic sensor
- D-shaped fiber
- Long-period fiber grating
- Graphene oxide
- Humidity sensing