Ultracompact Optical Fiber Sensor for Refractive Index and High-Temperature Measurement

An ultracompact microfiber sensor head is demonstrated for refractive index and high temperature sensing. Such a device is a fiber in-line Mach-Zehnder interferometer formed by creating an inner air-cavity along a section of microfiber and exhibits a high refractive index sensitivity of ~4202 nm/ref...

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Bibliographic Details
Published in:Journal of lightwave technology 2014-07, Vol.32 (14), p.2531-2535
Main Authors: Liao, C. R., Chen, H. F., Wang, D. N.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Educational institutions
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fiber lasers
Fiber-optic instruments
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
Optical fiber sensors
Optical fibers
Optical instruments, equipment and techniques
Optoelectronic devices
Physics
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensitivity
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Temperature sensors
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Summary:An ultracompact microfiber sensor head is demonstrated for refractive index and high temperature sensing. Such a device is a fiber in-line Mach-Zehnder interferometer formed by creating an inner air-cavity along a section of microfiber and exhibits a high refractive index sensitivity of ~4202 nm/refractive index unit and a good temperature sensitivity of 41 pm/°C, with excellent high-temperature sustainability up to 1100 °C.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2014.2328356