Less-mode optic fiber evanescent wave absorbing sensor: Parameter design for high sensitivity liquid detection

Yihui Wu; Xiaohong Deng; Feng Li; Xuye Zhuang

doi:10.1016/j.snb.2006.05.026

Less-mode optic fiber evanescent wave absorbing sensor: Parameter design for high sensitivity liquid detection

Yihui Wu^*, Xiaohong Deng, Feng Li, Xuye Zhuang

^*Corresponding author for this work

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

36 Citations (Scopus)

Abstract

This paper describes a theoretical way to design a fiber-optic evanescent wave sensor made by a partly unclad commercial optical fibers. The effects of the sensor's main parameters, such as absorbing medium refractive index, diameter of the fiber's bare core and the launching conditions, are analyzed theoretically. The differences of the radiation-field intensity in each optical mode are considered. The sensing region was obtained by HF etching with a silicon support. The prototype sensing devices were tested and partly explained by the calculation results. The methylene blue dye of 3.5 × 10^-7 mol/L concentration was detected with the length of the sensing region of 14 mm. The bromcresol green in de-ionized water was measured in the experiment with 6.0 × 10^-7 mol/L concentration.

Original language	English
Pages (from-to)	127-133
Number of pages	7
Journal	Sensors and Actuators, B: Chemical
Volume	122
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2006.05.026
Publication status	Published - 8 Mar 2007
Externally published	Yes

Keywords

Evanescent wave sensor
Less-mode
Optical fiber
Sensitivity

Access to Document

10.1016/j.snb.2006.05.026

Cite this

@article{1ef6ebc7797a4ddfa67a6ce37e297c2b,

title = "Less-mode optic fiber evanescent wave absorbing sensor: Parameter design for high sensitivity liquid detection",

abstract = "This paper describes a theoretical way to design a fiber-optic evanescent wave sensor made by a partly unclad commercial optical fibers. The effects of the sensor's main parameters, such as absorbing medium refractive index, diameter of the fiber's bare core and the launching conditions, are analyzed theoretically. The differences of the radiation-field intensity in each optical mode are considered. The sensing region was obtained by HF etching with a silicon support. The prototype sensing devices were tested and partly explained by the calculation results. The methylene blue dye of 3.5 × 10-7 mol/L concentration was detected with the length of the sensing region of 14 mm. The bromcresol green in de-ionized water was measured in the experiment with 6.0 × 10-7 mol/L concentration.",

keywords = "Evanescent wave sensor, Less-mode, Optical fiber, Sensitivity",

author = "Yihui Wu and Xiaohong Deng and Feng Li and Xuye Zhuang",

year = "2007",

month = mar,

day = "8",

doi = "10.1016/j.snb.2006.05.026",

language = "English",

volume = "122",

pages = "127--133",

journal = "Sensors and Actuators, B: Chemical",

issn = "0925-4005",

publisher = "Elsevier B.V.",

number = "1",

}

TY - JOUR

T1 - Less-mode optic fiber evanescent wave absorbing sensor

T2 - Parameter design for high sensitivity liquid detection

AU - Wu, Yihui

AU - Deng, Xiaohong

AU - Li, Feng

AU - Zhuang, Xuye

PY - 2007/3/8

Y1 - 2007/3/8

N2 - This paper describes a theoretical way to design a fiber-optic evanescent wave sensor made by a partly unclad commercial optical fibers. The effects of the sensor's main parameters, such as absorbing medium refractive index, diameter of the fiber's bare core and the launching conditions, are analyzed theoretically. The differences of the radiation-field intensity in each optical mode are considered. The sensing region was obtained by HF etching with a silicon support. The prototype sensing devices were tested and partly explained by the calculation results. The methylene blue dye of 3.5 × 10-7 mol/L concentration was detected with the length of the sensing region of 14 mm. The bromcresol green in de-ionized water was measured in the experiment with 6.0 × 10-7 mol/L concentration.

AB - This paper describes a theoretical way to design a fiber-optic evanescent wave sensor made by a partly unclad commercial optical fibers. The effects of the sensor's main parameters, such as absorbing medium refractive index, diameter of the fiber's bare core and the launching conditions, are analyzed theoretically. The differences of the radiation-field intensity in each optical mode are considered. The sensing region was obtained by HF etching with a silicon support. The prototype sensing devices were tested and partly explained by the calculation results. The methylene blue dye of 3.5 × 10-7 mol/L concentration was detected with the length of the sensing region of 14 mm. The bromcresol green in de-ionized water was measured in the experiment with 6.0 × 10-7 mol/L concentration.

KW - Evanescent wave sensor

KW - Less-mode

KW - Optical fiber

KW - Sensitivity

UR - http://www.scopus.com/inward/record.url?scp=33847047169&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2006.05.026

DO - 10.1016/j.snb.2006.05.026

M3 - Article

AN - SCOPUS:33847047169

SN - 0925-4005

VL - 122

SP - 127

EP - 133

JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

IS - 1

ER -

Less-mode optic fiber evanescent wave absorbing sensor: Parameter design for high sensitivity liquid detection

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this