Abstract
This paper reports a novel micro extrinsic fiber-optic F-P interferometric (MEFPI) sensor micromachined on a conventional optical fiber (Corning SMF-28) by using a near-infrared femtosecond laser, for the first time to the best of our knowledge. The strain and temperature characteristics of such a sensor were investigated and the experimental results show that the strain and temperature sensitivities are 0.006nm/με and -0.0017nm/°C, respectively. This type of MEFPI sensors has a number of advantages when compared with conventional EFPI sensors, such as easy fabrication, high integration degree, good reliability, low temperature cross-sensitivity, low cost, and capability for mass-production, offering great potential for a wide range of sensing applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1203-1206 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 364-366 II |
| State | Published - 2008 |
| Externally published | Yes |
Keywords
- Femtosecond lasers
- Fiber-optic extrinsic Fabry-Perot interferometric (EFPI) sensor
- Laser-micromachining
- Optical fiber sensors