Orr, Philip and Paterson, Alan and Niewczas, Pawel (2012) Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. In: SPIE Proceedings Vol. 8421. SPIE--The International Society for Optical Engineering.. ISBN 9780819491039
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We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected wavelengths to be calculated instantaneously upon arrival, and incorporates a technique for identification of initial absolute sensor wavelengths in order to overcome the measurement ambiguity associated with interferometric schemes. The proposed system will allow for high-speed interrogation of large-scale FBG sensor arrays with interferometric resolution and the capability for dynamic, static, and absolute FBG wavelength measurement.
|Item type:||Book Section|
|Keywords:||interferometric time division, FBG interrogator , multiplexer , interferometric interrogator , Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Pure Administrator|
|Date Deposited:||26 Jun 2012 13:45|
|Last modified:||28 Apr 2016 14:11|