Microcavity strain sensor for high temperature applications

Amardeep Kaur; Steve E. Watkins; Jie Huang; Lei Yuan; Hai Xiao

doi:10.1117/1.OE.53.1.017105

Microcavity strain sensor for high temperature applications

Amardeep Kaur, Steve E. Watkins^*, Jie Huang, Lei Yuan, Hai Xiao

^*Corresponding author for this work

School of Mechanical Engineering

University of Missouri-Rolla

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

A microcavity extrinsic Fabry-Perot interferometric (EFPI) fiber-optic sensor is presented for measurement of strain. The EFPI sensor is fabricated by micromachining a cavity on the tip of a standard single-mode fiber with a femtosecond (fs) laser and is then self-enclosed by fusion splicing another piece of single-mode fiber. The fs-laser-based fabrication makes the sensor thermally stable to sustain temperatures as high as 800°C. The sensor exhibits linear performance for a range up to 3700 μ e and a low temperature sensitivity of only 0.59 pm/°C through 800°C.

Original language	English
Article number	017105
Journal	Optical Engineering
Volume	53
Issue number	1
DOIs	https://doi.org/10.1117/1.OE.53.1.017105
Publication status	Published - Jan 2014

Keywords

Extrinsic Fabry-Perot interferometric
Femtosecond-laser
Micromachining
Optical fiber sensor
Strain analysis
Temperature

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10.1117/1.OE.53.1.017105

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title = "Microcavity strain sensor for high temperature applications",

abstract = "A microcavity extrinsic Fabry-Perot interferometric (EFPI) fiber-optic sensor is presented for measurement of strain. The EFPI sensor is fabricated by micromachining a cavity on the tip of a standard single-mode fiber with a femtosecond (fs) laser and is then self-enclosed by fusion splicing another piece of single-mode fiber. The fs-laser-based fabrication makes the sensor thermally stable to sustain temperatures as high as 800°C. The sensor exhibits linear performance for a range up to 3700 μ e and a low temperature sensitivity of only 0.59 pm/°C through 800°C.",

keywords = "Extrinsic Fabry-Perot interferometric, Femtosecond-laser, Micromachining, Optical fiber sensor, Strain analysis, Temperature",

author = "Amardeep Kaur and Watkins, {Steve E.} and Jie Huang and Lei Yuan and Hai Xiao",

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AU - Kaur, Amardeep

AU - Watkins, Steve E.

AU - Huang, Jie

AU - Yuan, Lei

AU - Xiao, Hai

PY - 2014/1

Y1 - 2014/1

N2 - A microcavity extrinsic Fabry-Perot interferometric (EFPI) fiber-optic sensor is presented for measurement of strain. The EFPI sensor is fabricated by micromachining a cavity on the tip of a standard single-mode fiber with a femtosecond (fs) laser and is then self-enclosed by fusion splicing another piece of single-mode fiber. The fs-laser-based fabrication makes the sensor thermally stable to sustain temperatures as high as 800°C. The sensor exhibits linear performance for a range up to 3700 μ e and a low temperature sensitivity of only 0.59 pm/°C through 800°C.

AB - A microcavity extrinsic Fabry-Perot interferometric (EFPI) fiber-optic sensor is presented for measurement of strain. The EFPI sensor is fabricated by micromachining a cavity on the tip of a standard single-mode fiber with a femtosecond (fs) laser and is then self-enclosed by fusion splicing another piece of single-mode fiber. The fs-laser-based fabrication makes the sensor thermally stable to sustain temperatures as high as 800°C. The sensor exhibits linear performance for a range up to 3700 μ e and a low temperature sensitivity of only 0.59 pm/°C through 800°C.

KW - Extrinsic Fabry-Perot interferometric

KW - Femtosecond-laser

KW - Micromachining

KW - Optical fiber sensor

KW - Strain analysis

KW - Temperature

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SN - 0091-3286

VL - 53

JO - Optical Engineering

JF - Optical Engineering

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Microcavity strain sensor for high temperature applications

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Keywords

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