Fiber laser FBG sensor system by using a spectrometer demodulation

Hyunjin Kim; Minho Song

doi:10.1117/12.886752

6 May 2011 Fiber laser FBG sensor system by using a spectrometer demodulation

Hyunjin Kim, Minho Song

Proceedings Volume 8073, Optical Sensors 2011; and Photonic Crystal Fibers V; 80730B (2011) https://doi.org/10.1117/12.886752
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

We suggest a spectrometer demodulation method of FBG sensors for the possible uses in wind power generator's blade monitoring. High signal-to-noise ratio outputs and linear demodulation were obtained by combining a fiber laser light source and a spectrometer which used a holographic volume grating and a 512-pixel PD array. Preliminary experimental results are presented to show the feasibility of the suggested FBG demodulation system.

Citation Download Citation

Hyunjin Kim and Minho Song "Fiber laser FBG sensor system by using a spectrometer demodulation", Proc. SPIE 8073, Optical Sensors 2011; and Photonic Crystal Fibers V, 80730B (6 May 2011); https://doi.org/10.1117/12.886752

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