Simultaneous wavelength and frequency encoded microstructure based quasi-distributed temperature sensor
A novel microstructure based temperature sensor system using hybrid wavelength-division-multiplexing /frequency-division-multiplexing (WDM/FDM) is proposed. The sensing unit is a specially designed microstructure sensor both frequency and wavelength encoded, as well as low insertion loss which m...
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Main Authors: | , , , , , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2013
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/96535 http://hdl.handle.net/10220/9928 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | A novel microstructure based temperature sensor system using
hybrid wavelength-division-multiplexing /frequency-division-multiplexing
(WDM/FDM) is proposed. The sensing unit is a specially designed
microstructure sensor both frequency and wavelength encoded, as well as
low insertion loss which makes it have the potential to be densely
multiplexed along one fiber. Moreover, the microstructure can be simply
fabricated by UV light irradiation on commercial single-mode fiber.
Assisted with appropriate demodulation algorithm, the temperature
distribution along the fiber can be calculated accurately. In theory, more
than 1000 sensors can be multiplexed on one fiber. We experimentally
demonstrated the feasibility of the scheme through building a sensor system
with 9 microstructures multiplexing and with temperature resolution of
0.4°C. |
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