Title :
Extended range interrogation of wavelength division multiplexed fibre Bragg grating sensors using arrayed waveguide grating
Author :
Norman, D.C.C. ; Webb, D.J. ; Pechstedt, R.D.
Author_Institution :
Photonics Res. Group, Aston Univ., Birmingham, UK
Abstract :
A technique for interrogating multiplexed fibre Bragg grating (FBG) sensors using an arrayed waveguide grating (AWG) is described. The approach considerably extends the sensing range from that achieved previously, while providing a strain resolution of 17nε/√Hz at 30 Hz.
Keywords :
Bragg gratings; arrayed waveguide gratings; fibre optic sensors; wavelength division multiplexing; 30 Hz; AWG; FBG sensors; WDM fibre Bragg grating sensors; arrayed waveguide grating; extended range sensor interrogation; sensing range extension; strain resolution; wavelength division multiplexed fibre sensors;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031093
