Abstract
A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.
| Original language | English |
|---|---|
| Pages (from-to) | 5250-5254 |
| Number of pages | 5 |
| Journal | Optics Communications |
| Volume | 283 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 15 Dec 2010 |
Keywords
- Fiber loop mirror (FLM)
- Highly birefringent photonic crystal fiber (HiBi-PCF)
- Intensity measurement
- Strain senor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering