Abstract
novel bandwidth-tuning method based on polymer-packaged fiber Bragg grating (FBG) is proposed and experimentally demonstrated. A FBG is embedded along the central axis in a polymer-filled rigid cylinder. The pressure-induced axial strain gradient along the FBG is calculated by using rigorous finite-element method (FEM). The corresponding broadening of the FBG reflection spectrum was numerically simulated using a transfer matrix method and experimentally analyzed. A linear spectral broadening up to 3.12 nm for a pressure of 0.8 MPa was observed.
| Original language | English |
|---|---|
| Article number | 5784298 |
| Pages (from-to) | 1225-1257 |
| Number of pages | 33 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 23 |
| Issue number | 17 |
| DOIs | |
| State | Published - 2011 |
Keywords
- Fiber bragg grating (fbg)
- Polymer-packaged
- Sensor
- Spectral broadening
- Tunable filter