Abstract
A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the PCF, the proposed strain sensor is inherently insensitive to temperature. When a DFB laser passes through the FLM, the output power will only be affected by the transmission spectral change of the FLM caused by the strain applied on the 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 |
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Title of host publication | Optical Sensors and Biophotonics |
Volume | 7634 |
DOIs | |
Publication status | Published - 1 Dec 2009 |
Event | Optical Sensors and Biophotonics - Shanghai, China Duration: 2 Nov 2009 → 6 Nov 2009 |
Conference
Conference | Optical Sensors and Biophotonics |
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Country/Territory | China |
City | Shanghai |
Period | 2/11/09 → 6/11/09 |
Keywords
- Fiber loop mirror (FLM)
- Highly birefringent photonic crystal fiber (HiBi-PCF)
- Intensity measurement
- Strain senor
ASJC Scopus subject areas
- Applied Mathematics
- Computer Science Applications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics