A scheme of measuring fiber grating reflective wavelength by tunable Fabryperotcavity, which contains a PZT, is proposed. It can transform the wavelength into electrical signals directly.
The reflectivity of optical mirrors can be obtained by measuring linewidth of transmission spectrum of optical cavity and the fineness of Fabry-Perot (F-P) cavity.
谐振腔精细度法是通过测量光学谐振腔透射谱线宽度来实现对光学反射镜反射率的测定。
3
Influence of temperature effect on Fabry-Perotcavity optical fiber sensor system is analyzed and the projects of self-compensation for temperature effect are put forward.