2 June 2011 A 40 ksamples/sec spectrometer based FBG interrogator capable of simultaneously measuring more than 16 FBG sensors
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Abstract
A fast spectrometer based FBG interrogator will be discussed. This unit is constructed around a fast linear InGaAs array with 1024 pixels and capable of reading out 40000 lines per second. This array is integrated in a double reflective grating spectrometer, dispersing the spectra in the [1510 - 1590 nm] band. The signal treatment electronics is capable of determining the peak wavelength position of at least 8 birefringent FBG sensors or 16 single FBG sensors at the data rate, supplied by the image sensor.
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Jan P. Vermeiren, Jan P. Vermeiren, Jonas L. Bentell, Jonas L. Bentell, Danny De Gaspari, Danny De Gaspari, Dirk Uwaerts, Dirk Uwaerts, Peet Verbeke, Peet Verbeke, Johan Vlekken, Johan Vlekken, } "A 40 ksamples/sec spectrometer based FBG interrogator capable of simultaneously measuring more than 16 FBG sensors", Proc. SPIE 8028, Fiber Optic Sensors and Applications VIII, 80280G (2 June 2011); doi: 10.1117/12.888135; https://doi.org/10.1117/12.888135
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