TEMPERATURE-COMPENSATING ELEMENT AND SAGNAC INTERFERENCE-BASED OPTICAL CURRENT SENSOR UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a temperature-compensating element which cancels thermo-reversible stable temperature dependence that exists as a whole in an optical current sensor, and to provide a Sagnac interference-based optical current sensor utilizing the same.;SOLUTION: The temperature-compensating element includes a polarization-maintaining fiber, and a protective layer which covers the outer surface of the polarization-maintaining fiber. The outer surface of the polarization-maintaining fiber is covered partly in the longitudinal direction by a stress-applying layer instead of the protective layer.;COPYRIGHT: (C)2012,JPO&INPIT