Interrogating fiber Bragg grating sensors by thermally scanning a demultiplexer based on arrayed waveguide gratings

We evaluate a wavelength interrogation technique based on an arrayed waveguide grating (AWG). Initial results show that the Bragg wavelength of fiber Bragg grating (FBG) sensors can be precisely interrogated by thermally scanning an AWG-based demultiplexer. The technique potentially offers a low-cos...

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Veröffentlicht in:	Optics letters 2004-10, Vol.29 (19), p.2222-2224
Hauptverfasser:	XIAO, G. Z, ZHAO, P, SUN, F. G, LU, Z. G, ZHIYI ZHANG, GROVER, C. P
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Circuit properties Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Integrated optics. Optical fibers and wave guides Optical and optoelectronic circuits Other integrated-optical elements and systems
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Beschreibung
Zusammenfassung:	We evaluate a wavelength interrogation technique based on an arrayed waveguide grating (AWG). Initial results show that the Bragg wavelength of fiber Bragg grating (FBG) sensors can be precisely interrogated by thermally scanning an AWG-based demultiplexer. The technique potentially offers a low-cost, compact, and high-performance solution for the interrogation of FBG distributed sensors and multisensor arrays.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.29.002222