Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel

Zhijun Yan; Pouneh Saffari; Kaiming Zhou; Adedotun Adebay; Lin Zhang

doi:10.1117/12.921410

Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel

Zhijun Yan^*, Pouneh Saffari, Kaiming Zhou, Adedotun Adebay, Lin Zhang

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

Research output: Chapter in Book/Published conference output › Conference publication

Abstract

We report a linear response optical refractive index (RI) sensor, which is fabricated based on a micro-channel created within a Fabry Perot (F-P) cavity by chemical etching assisted by femtosecond laser inscription. The experimental results show the F-P resonance peak has a linear response with the RI of medium and the measuring sensitivity is proportion to the length of micro-channel. The sensor with 5 μm -long micro-channel exhibited an RI sensitivity of 1.15nm/RIU and this sensitivity increased to 9.08nm/RIU when widening the micro-channel to 35μm. Furthermore, such micro-channel FP sensors show a much broader RI sensing dynamic range (from 1.3 to 1.7) than other reported optical fiber sensors.

Original language	English
Title of host publication	Microstructured and specialty optical fibres
Editors	Kyriacos Kalli, Alexis Mendez
Publisher	SPIE
Number of pages	7
ISBN (Print)	978-0-8194-9118-3
DOIs	https://doi.org/10.1117/12.921410
Publication status	Published - 12 Apr 2012
Event	Microstructured and specialty optical fibres - Brussels, Belgium Duration: 17 Apr 2012 → 19 Apr 2012

Publication series

Name	SPIE proceedings
Publisher	SPIE
Volume	8426
ISSN (Print)	0277-786X

Conference

Conference	Microstructured and specialty optical fibres
Country/Territory	Belgium
City	Brussels
Period	17/04/12 → 19/04/12

Bibliographical note

Zhijun Yan; Pouneh Saffari; Kaiming Zhou; Adedotun Adebay and Lin Zhang,
"Optical RI sensor based on an in-fiber Bragg grating Fabry-Perot cavity embedded with a micro-channel", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 842609 (June 1, 2012).

Copyright 2012. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

DOI: http://dx.doi.org/10.1117/12.921410

Keywords

F-P sensors
FBG
femtosecond laser
micro-channel
refractive index

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10.1117/12.921410

Optical RI sensor
Zhijun Yan; Pouneh Saffari; Kaiming Zhou; Adedotun Adebay and Lin Zhang, "Optical RI sensor based on an in-fiber Bragg grating Fabry-Perot cavity embedded with a micro-channel", Proc. SPIE 8426, Microstructured and Specialty Optical Fibres, 842609 (June 1, 2012). Copyright 2012. Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.921410
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http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1315939

Cite this

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title = "Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel",

abstract = "We report a linear response optical refractive index (RI) sensor, which is fabricated based on a micro-channel created within a Fabry Perot (F-P) cavity by chemical etching assisted by femtosecond laser inscription. The experimental results show the F-P resonance peak has a linear response with the RI of medium and the measuring sensitivity is proportion to the length of micro-channel. The sensor with 5 μm -long micro-channel exhibited an RI sensitivity of 1.15nm/RIU and this sensitivity increased to 9.08nm/RIU when widening the micro-channel to 35μm. Furthermore, such micro-channel FP sensors show a much broader RI sensing dynamic range (from 1.3 to 1.7) than other reported optical fiber sensors.",

keywords = "F-P sensors, FBG, femtosecond laser, micro-channel, refractive index",

author = "Zhijun Yan and Pouneh Saffari and Kaiming Zhou and Adedotun Adebay and Lin Zhang",

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Yan, Z, Saffari, P, Zhou, K, Adebay, A & Zhang, L 2012, Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel. in K Kalli & A Mendez (eds), Microstructured and specialty optical fibres., 842609, SPIE proceedings, vol. 8426, SPIE, Microstructured and specialty optical fibres, Brussels, Belgium, 17/04/12. https://doi.org/10.1117/12.921410

Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel. / Yan, Zhijun; Saffari, Pouneh; Zhou, Kaiming et al.
Microstructured and specialty optical fibres. ed. / Kyriacos Kalli; Alexis Mendez. SPIE, 2012. 842609 (SPIE proceedings; Vol. 8426).

Research output: Chapter in Book/Published conference output › Conference publication

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PY - 2012/4/12

Y1 - 2012/4/12

N2 - We report a linear response optical refractive index (RI) sensor, which is fabricated based on a micro-channel created within a Fabry Perot (F-P) cavity by chemical etching assisted by femtosecond laser inscription. The experimental results show the F-P resonance peak has a linear response with the RI of medium and the measuring sensitivity is proportion to the length of micro-channel. The sensor with 5 μm -long micro-channel exhibited an RI sensitivity of 1.15nm/RIU and this sensitivity increased to 9.08nm/RIU when widening the micro-channel to 35μm. Furthermore, such micro-channel FP sensors show a much broader RI sensing dynamic range (from 1.3 to 1.7) than other reported optical fiber sensors.

AB - We report a linear response optical refractive index (RI) sensor, which is fabricated based on a micro-channel created within a Fabry Perot (F-P) cavity by chemical etching assisted by femtosecond laser inscription. The experimental results show the F-P resonance peak has a linear response with the RI of medium and the measuring sensitivity is proportion to the length of micro-channel. The sensor with 5 μm -long micro-channel exhibited an RI sensitivity of 1.15nm/RIU and this sensitivity increased to 9.08nm/RIU when widening the micro-channel to 35μm. Furthermore, such micro-channel FP sensors show a much broader RI sensing dynamic range (from 1.3 to 1.7) than other reported optical fiber sensors.

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BT - Microstructured and specialty optical fibres

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A2 - Mendez, Alexis

PB - SPIE

T2 - Microstructured and specialty optical fibres

Y2 - 17 April 2012 through 19 April 2012

ER -

Optical RI sensor based on an in-fiber bragg grating fabry-perot cavity embedded with a micro-channel

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

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