Birefringent optical fiber device for measuring of ambient pressure in a stabilized temperature environment

摘要

The present disclosure describes a birefringent optical fiber device for measuring of ambient pressure in a stabilized temperature environment, when connected respectively to a light source and a measuring apparatus. The device comprises a first device for receiving polarized light from the light source; a birefringent fiber being connected to the first device for receiving the polarized light which has light signal components polarized along two orthogonal polarization axes of the berefringent fiber, the berefringent optical fiber having a preselected length determined by a range of pressures to be measured; and a second device for receiving light signals emitted from the birefringent fiber, the light signals having elliptical polarization state characterized by major and minor axes, whereby cross-talk between the light signal components along the polarization axes being responsive to the ambient pressure in the environment.