Macrobending fibre loss filter, ratiometric wavelength measurement and application

Qian Wang; Ginu Rajan; Gerald Farrell; Pengfei Wang; Yuliya Semenova; Thomas Freir

doi:10.1088/0957-0233/18/10/S06

Macrobending fibre loss filter, ratiometric wavelength measurement and application

Qian Wang^*, Ginu Rajan, Gerald Farrell, Pengfei Wang, Yuliya Semenova, Thomas Freir

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

A macrobending standard single-mode fibre (SMF28) is optimized as an edge filter, with the optimal bending radius and length determined according to the bend loss and polarization sensitivity of the bending fibre. An all-fibre ratiometric wavelength system is built and calibrated. The system's accuracy and resolution is discussed with the influence of noise of input signal and photodetectors. Finally, the ratiometric system is employed for the demodulation of FBG strain sensing.

Original language	English
Pages (from-to)	3082-3088
Number of pages	7
Journal	Measurement Science and Technology
Volume	18
Issue number	10
DOIs	https://doi.org/10.1088/0957-0233/18/10/S06
Publication status	Published - 12 Sept 2007
Externally published	Yes

Keywords

FBG sensing
Macrobend
Ratiometric wavelength measurement
Single-mode fibre

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10.1088/0957-0233/18/10/S06

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AU - Rajan, Ginu

AU - Farrell, Gerald

AU - Wang, Pengfei

AU - Semenova, Yuliya

AU - Freir, Thomas

PY - 2007/9/12

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AB - A macrobending standard single-mode fibre (SMF28) is optimized as an edge filter, with the optimal bending radius and length determined according to the bend loss and polarization sensitivity of the bending fibre. An all-fibre ratiometric wavelength system is built and calibrated. The system's accuracy and resolution is discussed with the influence of noise of input signal and photodetectors. Finally, the ratiometric system is employed for the demodulation of FBG strain sensing.

KW - FBG sensing

KW - Macrobend

KW - Ratiometric wavelength measurement

KW - Single-mode fibre

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Macrobending fibre loss filter, ratiometric wavelength measurement and application

Abstract

Keywords

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