Abstract
The temperature sensitivity of fiber Bragg grating (FBG) temperature sensor is enhanced when using a copper tube to jacket of the FBG.Both sides of the FBG are glued with epoxy to cylindrical ferrules tubes that in turn is inserted and glued to a cylindrical copper tube. As the high thermal expansion coefficient of the cylindrical copper tube pulls both sides of the FBG, the temperature sensitivity is improved 3.3-fold when compared to that of a bare FBG.
| Original language | English |
|---|---|
| Pages (from-to) | 1669-1671 |
| Number of pages | 3 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 53 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2011 |
Keywords
- copper tube
- enhanced
- fiber Bragg grating
- temperature sensitivity
- temperature sensor