Abstract
An all fiber temperature sensor based on intensity measurement is designed, by using long period fiber grating (LPG) as sensor element and using tunable Er-doped fiber ring laser as optical source. The measured temperature sensitivity of LPG is 0.086 nm/°C, which is about 8.2 times higher than typical value for a normal fiber Bragg grating. In the temperature range of 74 °C, the loss of the laser is linear with the measured temperature and the linearity can be repeated well. The resolution of temperature measurement is 0.1 °C.
Original language | English |
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Pages (from-to) | 492-495 |
Number of pages | 4 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3740 |
Publication status | Published - 1 Jan 1999 |
Externally published | Yes |
Event | Proceedings of the 1999 Optical Engineering for Sensing and Nanotechnology (ICOSN '99) - Yokohama, Japan Duration: 16 Jun 1999 → 18 Jun 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering