Journal article
Temperature Compensated Strain Sensor Based on Cascaded Sagnac Interferometers and All-Solid Birefringent Hybrid Photonic Crystal Fibers
We demonstrate a temperature compensated strain sensor with two cascaded Sagnac interferometers, that provide strain sensing and temperature compensation, respectively. The Sagnac interferometers use an all-solid hybrid photonic crystal fiber with stress-induced birefringence. The stress-induced birefringent fiber is known to offer the maximum strain sensitivity, but also to suffer from temperature crosstalk.
Our experimental results show that the cascaded Sagnac sensor can suppress the crosstalk to a temperature upto 0.33 με/ºC, while still providing a high strain sensitivity of ~25.6 pm}/με.
Language: | English |
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Publisher: | IEEE |
Year: | 2012 |
Pages: | 1641-1646 |
ISSN: | 15581748 and 1530437x |
Types: | Journal article |
DOI: | 10.1109/JSEN.2011.2175725 |
ORCIDs: | Bang, Ole |
Optical fiber sensors Optical fibers Sagnac interferometers Sensitivity Strain Temperature sensors all solid birefringent hybrid photonic crystal fibers birefringence cascaded Sagnac interferometer cascaded Sagnac sensor compensation fibre optic sensors holey fibres hybrid photonic crystal fiber photonic crystals strain sensitivity strain sensors stress induced birefringence temperature compensated strain sensor temperature compensation