Distributed Bragg reflector fibre laser‐based sensor array for multi‐parameter detection. Issue 18 (1st August 2014)

• Record Type: Journal Article
• Authors: Yu, Kuanglu; Wu, Chongqing; Mao, Yaya; Wang, Zhi; Lu, Chao; Tam, Hwa‐Yaw; Zhao, Yao
• Is Part Of: Electronics letters. Volume 50:Issue 18(2014)
• Page Start: 1301
• Page End: 1303
• Publication Date: 2014-08-01
• Subjects: fibre lasers -- fibre optic sensors -- optical arrays -- distributed Bragg reflector lasers -- strain measurement -- strain sensors; distributed Bragg reflector fibre laser -- sensor array -- multiparameter detection -- multichannel multifunctional detector -- bending radius -- transverse load sensitivity -- axial strain sensitivity -- lasing wavelength -- output beat note frequency -- measurement theory -- DBR fibre laser -- three‐probe array -- curvature sensitivity; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.1800
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A sensor array employing the distributed Bragg reflector (DBR) fibre laser is presented. This array could be utilised as a multi‐channel multi‐functional detector for bending radius, transverse load and axial strain by simultaneously monitoring the lasing wavelength and the output beat note frequency. The measurement theory of the DBR fibre laser is explained, and it is then experimentally verified with a three‐probe array. The system's detection sensitivities for curvature, transverse load and axial strain are found to be 600 MHz/cm −2, 1.3 MHz/g and 1.263 pm/με, respectively.