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Arrayed waveguide grating interrogator for fiber Bragg grating sensors: measurement and simulation |
Applied Optics, Vol. 51, Issue 31, pp. 7718-7723 (2012)
http://dx.doi.org/10.1364/AO.51.007718
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Abstract
A fiber Bragg grating (FBG) interrogation system based on an intensity demodulation and demultiplexing of an arrayed waveguide grating (AWG) module is examined in detail. The influence of the spectral line shape of the FBG on the signal obtained from the AWG device is discussed by accomplishing the measurement and simulation of the system. The simulation of the system helps to create quickly and precisely calibration functions for nonsymmetric, tilted, or nonapodized FBGs. Experiments show that even small sidebands of nonapodized FBGs have strong influences on the signal resulted by an AWG device with a Gaussian profile.
© 2012 Optical Society of America
OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: July 12, 2012
Revised Manuscript: September 28, 2012
Manuscript Accepted: October 3, 2012
Published: November 1, 2012
Citation
Jan Koch, Martin Angelmahr, and Wolfgang Schade, "Arrayed waveguide grating interrogator for fiber Bragg grating sensors: measurement and simulation," Appl. Opt. 51, 7718-7723 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-31-7718
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