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Wavelength interrogator based on closed-loop piezo-electrically scanned Space-to-wavelength mapping of an arrayed waveguide grating

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Academic year: 2021

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Figure

Fig. 2. Schematic methodology of the proposed approach.
Fig. 4. Experimental setup of the proposed interrogation technique based on space-to-wavelength mapping using a closed-loop piezo motor.
Fig. 5. Interrogation result of a single FBG sensor under four different temperatures, (a)–(d), as a function of the beam position.
Fig. 8. Measured transmission spectrum of a TFBG. (a) Measured by an OSA.

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