Dual-wavelength differential detection of tilted fiber Bragg gratings for ppb-level measurement of dissolved ammonia

Ouellette Fraņois; Shucheng Liu; Jianfeng Li; Jacques Albert

doi:10.1364/BGPPM.2022.BTh2A.5

Optica Advanced Photonics Congress 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper BTh2A.5
•https://doi.org/10.1364/BGPPM.2022.BTh2A.5

Dual-wavelength differential detection of tilted fiber Bragg gratings for ppb-level measurement of dissolved ammonia

Ouellette Fraņois, Shucheng Liu, Jianfeng Li, and Jacques Albert

Bragg Gratings, Photosensitivity and Poling in Glass Waveguides and Materials 2022

Maastricht,Limburg Netherlands
24–28 July 2022
ISBN: 978-1-957171-16-6

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O. Fraņois, S. Liu, J. Li, and J. Albert, "Dual-wavelength differential detection of tilted fiber Bragg gratings for ppb-level measurement of dissolved ammonia," in Optica Advanced Photonics Congress 2022, Technical Digest Series (Optica Publishing Group, 2022), paper BTh2A.5.

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Abstract

The dual-wavelength differential detection method is used to detect dissolved ammonia with a sol-gel coated tilted fiber Bragg grating, achieving a limit of detection of 11 ppb.

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