A new structure for diaphragm-based extrinsic Fabry-Perot interferometric (EFPI) optical fiber sensors is presented. This structure introduces a through hole in a conventional diaphragm-based EFPI sensor and significantly reduces the effect of operating point drift due to the background pressure and fluctuations. This structure also potentially has high temperature stability.
- Fabry-Perot interferometers
- Fiber optic sensors
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics