Simultaneous measurement of strain and temperature by two peanut tapers with embedded fiber Bragg grating

Lingya Lv; Sumei Wang; Lan Jiang; Fei Zhang; Zhitao Cao; Peng Wang; Yi Jiang; Yongfeng Lu

doi:10.1364/AO.54.010678

Simultaneous measurement of strain and temperature by two peanut tapers with embedded fiber Bragg grating

Lingya Lv, Sumei Wang^*, Lan Jiang, Fei Zhang, Zhitao Cao, Peng Wang, Yi Jiang, Yongfeng Lu

^*Corresponding author for this work

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

25 Citations (Scopus)

Abstract

A compact optical fiber sensor for simultaneous measurement of strain and temperature is designed and experimentally investigated. The proposed sensor consists of a two-peanut-taper Mach-Zehnder interferometer (MZI) and in-line embedded fiber Bragg grating (FBG). The sensor at a length of 35 mm presents strain sensitivities 1.07 pm/μe and 0.891 pm/μe, the temperature sensitivities are 55.35 pm/°C and 10.85 pm/°C, for MZI and FBG, respectively. Through tapering the center of the sensor by a fusion splicer, the strain sensitivity of the MZI is improved to 1.93 pm/μe. The resolutions for strain and temperature measurement are ±3.104 μe and ±0.194°C with the wavelength resolution of 5 pm. The experimental results show that the sensor is able to simultaneously measure strain and temperature by sensitivity matrix with advantages such as simple structure, compact size, ease of fabrication, low cost, etc.

Original language	English
Pages (from-to)	10678-10683
Number of pages	6
Journal	Applied Optics
Volume	54
Issue number	36
DOIs	https://doi.org/10.1364/AO.54.010678
Publication status	Published - 20 Dec 2015

Access to Document

10.1364/AO.54.010678

Cite this

@article{3ff0f7e440b74340bb421f219150c1c7,

title = "Simultaneous measurement of strain and temperature by two peanut tapers with embedded fiber Bragg grating",

abstract = "A compact optical fiber sensor for simultaneous measurement of strain and temperature is designed and experimentally investigated. The proposed sensor consists of a two-peanut-taper Mach-Zehnder interferometer (MZI) and in-line embedded fiber Bragg grating (FBG). The sensor at a length of 35 mm presents strain sensitivities 1.07 pm/μe and 0.891 pm/μe, the temperature sensitivities are 55.35 pm/°C and 10.85 pm/°C, for MZI and FBG, respectively. Through tapering the center of the sensor by a fusion splicer, the strain sensitivity of the MZI is improved to 1.93 pm/μe. The resolutions for strain and temperature measurement are ±3.104 μe and ±0.194°C with the wavelength resolution of 5 pm. The experimental results show that the sensor is able to simultaneously measure strain and temperature by sensitivity matrix with advantages such as simple structure, compact size, ease of fabrication, low cost, etc.",

author = "Lingya Lv and Sumei Wang and Lan Jiang and Fei Zhang and Zhitao Cao and Peng Wang and Yi Jiang and Yongfeng Lu",

note = "Publisher Copyright: {\textcopyright} 2015 Optical Society of America.",

year = "2015",

month = dec,

day = "20",

doi = "10.1364/AO.54.010678",

language = "English",

volume = "54",

pages = "10678--10683",

journal = "Applied Optics",

issn = "1559-128X",

publisher = "Optica Publishing Group",

number = "36",

}

TY - JOUR

T1 - Simultaneous measurement of strain and temperature by two peanut tapers with embedded fiber Bragg grating

AU - Lv, Lingya

AU - Wang, Sumei

AU - Jiang, Lan

AU - Zhang, Fei

AU - Cao, Zhitao

AU - Wang, Peng

AU - Jiang, Yi

AU - Lu, Yongfeng

PY - 2015/12/20

Y1 - 2015/12/20

N2 - A compact optical fiber sensor for simultaneous measurement of strain and temperature is designed and experimentally investigated. The proposed sensor consists of a two-peanut-taper Mach-Zehnder interferometer (MZI) and in-line embedded fiber Bragg grating (FBG). The sensor at a length of 35 mm presents strain sensitivities 1.07 pm/μe and 0.891 pm/μe, the temperature sensitivities are 55.35 pm/°C and 10.85 pm/°C, for MZI and FBG, respectively. Through tapering the center of the sensor by a fusion splicer, the strain sensitivity of the MZI is improved to 1.93 pm/μe. The resolutions for strain and temperature measurement are ±3.104 μe and ±0.194°C with the wavelength resolution of 5 pm. The experimental results show that the sensor is able to simultaneously measure strain and temperature by sensitivity matrix with advantages such as simple structure, compact size, ease of fabrication, low cost, etc.

AB - A compact optical fiber sensor for simultaneous measurement of strain and temperature is designed and experimentally investigated. The proposed sensor consists of a two-peanut-taper Mach-Zehnder interferometer (MZI) and in-line embedded fiber Bragg grating (FBG). The sensor at a length of 35 mm presents strain sensitivities 1.07 pm/μe and 0.891 pm/μe, the temperature sensitivities are 55.35 pm/°C and 10.85 pm/°C, for MZI and FBG, respectively. Through tapering the center of the sensor by a fusion splicer, the strain sensitivity of the MZI is improved to 1.93 pm/μe. The resolutions for strain and temperature measurement are ±3.104 μe and ±0.194°C with the wavelength resolution of 5 pm. The experimental results show that the sensor is able to simultaneously measure strain and temperature by sensitivity matrix with advantages such as simple structure, compact size, ease of fabrication, low cost, etc.

UR - http://www.scopus.com/inward/record.url?scp=85011681251&partnerID=8YFLogxK

U2 - 10.1364/AO.54.010678

DO - 10.1364/AO.54.010678

M3 - Article

AN - SCOPUS:85011681251

SN - 1559-128X

VL - 54

SP - 10678

EP - 10683

JO - Applied Optics

JF - Applied Optics

IS - 36

ER -

Simultaneous measurement of strain and temperature by two peanut tapers with embedded fiber Bragg grating

Abstract

Access to Document

Other files and links

Fingerprint

Cite this