Distributed polarimetric fiber-optic sensors using wavelength-scanning technique

The operation of distributed polarimetric fiber-optic sensors using wavelength scanning technique is discussed along with algorithms for processing of a signal coming from the sensor to retrieve tile information about the distribution of external force and field along the fiber. Tile principle of tile sensor operation is based on a change of spectral and polarization characteristics of broad-band radiation, propagating in the fiber, caused by thp external influence. The distribution of the external force along tile fiber is determined by the computer processing of the output spectrum. The analysis of such sensor and the results of our experiments demonstrate high spatial resolution and sensitivity.