Integrated optical sensor based on a FBG in parallel with a LPG

Ju Fa Liang; Shi Mei Jing; Ai Hua Meng; Chao Chen; Yun Liu; Yong Sen Yu

doi:10.3788/CO.20160903.0329

Integrated optical sensor based on a FBG in parallel with a LPG

Ju Fa Liang, Shi Mei Jing, Ai Hua Meng, Chao Chen, Yun Liu, Yong Sen Yu

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

11 Scopus citations

Abstract

In order to improve the performance of the fiber optic sensors and further reduce the size of them, a new integrated optical sensor based on a fiber Bragg grating(FBG) in parallel with a long-period grating(LPG) in a single mode fiber is reported in this paper. The FBG and the LPG are fabricated by femtosecond laser using direct inscription process. The variations of temperature and refractive index will cause the variations of resonant wavelengths of FBG and LPG. The experimental results show that the refractive index sensitivities of the FBG and the LPG respectively are 0 nm/RIU and 196.46 nm/RIU, and the temperature sensitivities of them are 12.98 pm/℃ and 10.93 pm/℃ respectively. Therefore, this sensor can be used for measuring temperature and refractive index simultaneously according to the dual parameters sensing matrix.

Original language	English
Pages (from-to)	329-334
Number of pages	6
Journal	Chinese Optics
Volume	9
Issue number	3
DOIs	https://doi.org/10.3788/CO.20160903.0329
State	Published - Jun 1 2016
Externally published	Yes

Keywords

Femtosecond laser
Fiber Bragg grating(FBG)
Long-period grating(LPG)
Ted optical sensor

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3788/CO.20160903.0329

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title = "Integrated optical sensor based on a FBG in parallel with a LPG",

abstract = "In order to improve the performance of the fiber optic sensors and further reduce the size of them, a new integrated optical sensor based on a fiber Bragg grating(FBG) in parallel with a long-period grating(LPG) in a single mode fiber is reported in this paper. The FBG and the LPG are fabricated by femtosecond laser using direct inscription process. The variations of temperature and refractive index will cause the variations of resonant wavelengths of FBG and LPG. The experimental results show that the refractive index sensitivities of the FBG and the LPG respectively are 0 nm/RIU and 196.46 nm/RIU, and the temperature sensitivities of them are 12.98 pm/℃ and 10.93 pm/℃ respectively. Therefore, this sensor can be used for measuring temperature and refractive index simultaneously according to the dual parameters sensing matrix.",

keywords = "Femtosecond laser, Fiber Bragg grating(FBG), Long-period grating(LPG), Ted optical sensor",

author = "Liang, {Ju Fa} and Jing, {Shi Mei} and Meng, {Ai Hua} and Chao Chen and Yun Liu and Yu, {Yong Sen}",

year = "2016",

month = jun,

day = "1",

doi = "10.3788/CO.20160903.0329",

language = "English",

volume = "9",

pages = "329--334",

journal = "Chinese Optics",

issn = "2097-1842",

number = "3",

}

TY - JOUR

T1 - Integrated optical sensor based on a FBG in parallel with a LPG

AU - Liang, Ju Fa

AU - Jing, Shi Mei

AU - Meng, Ai Hua

AU - Chen, Chao

AU - Liu, Yun

AU - Yu, Yong Sen

PY - 2016/6/1

Y1 - 2016/6/1

N2 - In order to improve the performance of the fiber optic sensors and further reduce the size of them, a new integrated optical sensor based on a fiber Bragg grating(FBG) in parallel with a long-period grating(LPG) in a single mode fiber is reported in this paper. The FBG and the LPG are fabricated by femtosecond laser using direct inscription process. The variations of temperature and refractive index will cause the variations of resonant wavelengths of FBG and LPG. The experimental results show that the refractive index sensitivities of the FBG and the LPG respectively are 0 nm/RIU and 196.46 nm/RIU, and the temperature sensitivities of them are 12.98 pm/℃ and 10.93 pm/℃ respectively. Therefore, this sensor can be used for measuring temperature and refractive index simultaneously according to the dual parameters sensing matrix.

AB - In order to improve the performance of the fiber optic sensors and further reduce the size of them, a new integrated optical sensor based on a fiber Bragg grating(FBG) in parallel with a long-period grating(LPG) in a single mode fiber is reported in this paper. The FBG and the LPG are fabricated by femtosecond laser using direct inscription process. The variations of temperature and refractive index will cause the variations of resonant wavelengths of FBG and LPG. The experimental results show that the refractive index sensitivities of the FBG and the LPG respectively are 0 nm/RIU and 196.46 nm/RIU, and the temperature sensitivities of them are 12.98 pm/℃ and 10.93 pm/℃ respectively. Therefore, this sensor can be used for measuring temperature and refractive index simultaneously according to the dual parameters sensing matrix.

KW - Femtosecond laser

KW - Fiber Bragg grating(FBG)

KW - Long-period grating(LPG)

KW - Ted optical sensor

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U2 - 10.3788/CO.20160903.0329

DO - 10.3788/CO.20160903.0329

M3 - Article

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SN - 2097-1842

VL - 9

SP - 329

EP - 334

JO - Chinese Optics

JF - Chinese Optics

IS - 3

ER -

Integrated optical sensor based on a FBG in parallel with a LPG

Abstract

Keywords

UN SDGs

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