Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror

Wenwen Qian; Chun Liu Zhao; Xinyong Dong; Wei Jin

doi:10.1016/j.optcom.2010.07.062

Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror

Wenwen Qian, Chun Liu Zhao, Xinyong Dong, Wei Jin

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

42 Citations (Scopus)

Abstract

A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.

Original language	English
Pages (from-to)	5250-5254
Number of pages	5
Journal	Optics Communications
Volume	283
Issue number	24
DOIs	https://doi.org/10.1016/j.optcom.2010.07.062
Publication status	Published - 15 Dec 2010

Keywords

Fiber loop mirror (FLM)
Highly birefringent photonic crystal fiber (HiBi-PCF)
Intensity measurement
Strain senor

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

More information

10.1016/j.optcom.2010.07.062

Cite this

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title = "Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror",

abstract = "A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.",

keywords = "Fiber loop mirror (FLM), Highly birefringent photonic crystal fiber (HiBi-PCF), Intensity measurement, Strain senor",

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AU - Qian, Wenwen

AU - Zhao, Chun Liu

AU - Dong, Xinyong

AU - Jin, Wei

PY - 2010/12/15

Y1 - 2010/12/15

N2 - A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.

AB - A fiber-optic strain sensor is demonstrated by using a short length of highly birefringent photonic crystal fiber (HiBi-PCF) as the sensing element inserted in a fiber loop mirror (FLM). Due to the ultralow thermal sensitivity of the HiBi-PCF, the proposed strain sensor is inherently insensitive to temperature. When a distributed-feedback (DFB) laser passes through the FLM, the output power is only affected by the transmission spectral change of the FLM caused by the strain applied on the HiBi-PCF. Based on intensity measurement, an optical power meter is adequate to deduce the strain information and an expensive optical spectrum analyzer (OSA) would not be needed.

KW - Fiber loop mirror (FLM)

KW - Highly birefringent photonic crystal fiber (HiBi-PCF)

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KW - Strain senor

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Intensity measurement based temperature-independent strain sensor using a highly birefringent photonic crystal fiber loop mirror

Abstract

Keywords

ASJC Scopus subject areas

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