TY - JOUR
T1 - Fiber Bragg grating sensor interrogation system using a CCD side detection method with superimposed blazed gratings
AU - Zhou, K.
AU - Simpson, A.G.
AU - Chen, X.
AU - Zhang, L.
AU - Bennion, I.
PY - 2004/6
Y1 - 2004/6
N2 - We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendedable to 70 nm.
AB - We present, for the first time to our knowledge, experimental evidence showing that superimposed blazed fiber Bragg gratings may be fabricated and used to extend the dynamic range of a grating-based spectrometer. Blazed gratings of 4° and 8° were superimposed in germanosilicate fiber by ultraviolet inscription and used in conjunction with a coated charged-coupled device array to interrogate a wavelength-division-multiplexing sensor array. We show that the system can be used to monitor strain and temperature sensors simultaneously with an employable bandwidth which is extendedable to 70 nm.
KW - fiber gratings
KW - optical coupling
KW - optical fiber radiation effect
KW - sensors
KW - wavelength-division multiplexing (WDM)
UR - http://www.scopus.com/inward/record.url?scp=2942704245&partnerID=8YFLogxK
UR - http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1300661
U2 - 10.1109/LPT.2004.826769
DO - 10.1109/LPT.2004.826769
M3 - Article
SN - 1041-1135
VL - 16
SP - 1549
EP - 1551
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 6
ER -