The insertion of a rotating halfwave plate (RHWP) into a polarimetric fiber optic scheme is analyzed. The RHWP allows phase control of the autointerference signal and can be used to pseudoheterodyne the polarimetric setup. The scheme is applied to a polarimetric sensor of a dynamic strain and permits full recovery of the elongation signal.
Novel method to pseudoheterodyne a polarimetric fiber optic sensor
MARTINELLI, MARIO;
1989-01-01
Abstract
The insertion of a rotating halfwave plate (RHWP) into a polarimetric fiber optic scheme is analyzed. The RHWP allows phase control of the autointerference signal and can be used to pseudoheterodyne the polarimetric setup. The scheme is applied to a polarimetric sensor of a dynamic strain and permits full recovery of the elongation signal.File in questo prodotto:
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