| 摘要 |
A fiber optic sensor (10) and related method are described, with the sensor (10) including a cross-coupling element (16) in the optical path between a polarizing element (2, 41, 55a, 24) and a sensing element (12), but separated from the sensing element itself; with the cross- coupling element (16) generating a defined cross-coupling between the two orthogonal polarization states of the fundamental mode of a polarization maintaining fiber (11) guiding light from the light source (1) to the sensing element (12) thus introducing a wavelength-dependent or temperature-dependent sensor signal shift to balance wavelength-dependent or temperature-dependent signal shifts due to other elements of the sensor, particularly signal shifts due to the wavelength dependence of the Faraday effect or the electro-optic effect constant. |
