Title :
Arrayed-waveguide-grating-based interrogator for wavelength-modulated multi-fiber-optic sensor applications
Author :
Xiao, Gao Zhi ; Zhao, Ping ; Sun, Fengguo ; Lu, Zhenguo ; Zhang, Zhiyi
Author_Institution :
Photonic Syst. Group, Nat. Res. Council Canada, Ottawa, Ont., Canada
Abstract :
Simultaneous interrogation of six distributed wavelength modulated fiber-optic sensors has been demonstrated using an arrayed-waveguide-grating-based interrogation technique proposed by our laboratory. This letter analyzes the operating principle of the method and reports the experimental results of this application. The results show that the interrogator proposed offers better than 1-pm wavelength resolution and has the potential of being packaged into a hand-held rugged device.
Keywords :
Bragg gratings; arrayed waveguide gratings; fibre optic sensors; optical fibre testing; optical modulation; arrayed waveguide grating based interrogator; hand-held rugged device; wavelength-modulated multifiber-optic sensor; Arrayed waveguide gratings; Bragg gratings; Channel spacing; Fiber gratings; Optical fiber sensors; Optical films; Sensor arrays; Sensor phenomena and characterization; Temperature sensors; Wavelength measurement; Arrayed waveguide gratings (AWGs); fiber Bragg grating (FBG); sensor; wavelength;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.850899
