Research Article

Thermal Expansion Measurements in Fresh and Saline Ice Using Fiber Optic Strain Gauges and Multipoint Temperature Sensors Based on Bragg Gratings

Figure 1

Interference pattern of laser beams in the fiber core during FBG generation (a). Reflected and transmitted signals after the passing of broad band light travelling along the fiber with an FBG inside (b) and a simplified illustration of the strain detection mechanism with a broad band light source containing a continuous spectrum of wavelengths (i.e., colours).
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