Abstract
An all-fiber refractive index sensor with a simple configuration is proposed and investigated. The proposed fiber refractometer consists of a full-loop structure of bare high-bend loss singlemode fiber-1060XP, employing the well-known whispering gallery mode (WGM) effect induced by the evanescent wave excitation to measure the refractive index of an external medium. A competitive sensitivity is achieved (average 725.76nm/RIU at a bend diameter of 19.3mm) compared with other fiber-optic sensors, plus benefits resulting from simplicity, low cost and ease of fabrication.
| Original language | English |
|---|---|
| Pages (from-to) | 67-69 |
| Number of pages | 3 |
| Journal | Photonics Letters of Poland |
| Volume | 2 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2010 |
Keywords
- all-fiber refractive index sensor
- simple configuration
- fiber refractometer
- full-loop structure
- bare high-bend loss singlemode fiber-1060XP
- whispering gallery mode (WGM) effect
- evanescent wave excitation
- refractive index
- external medium
- competitive sensitivity
- fiber-optic sensors
- simplicity
- low cost
- ease of fabrication