Research papers - Proceedings Volume 8028, Fiber Optic Sensors and Applications VIII; 80280G (2011)
A 40 ksamples/sec spectrometer based FBG interrogator capable of simultaneously measuring more than 16 FBG sensors
Jan P. Vermeiren, Jonas L. Bentell, Danny De Gaspari, Dirk Uwaerts, Peet Verbeke, Johan Vlekken
Short description
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.
Details:
Category
Photonic devices
Industry
Fiber Optic Sensing