1. Recent progress in interferometric fiber sensor technology;Kersey,1990
2. A novel distributed optic fiber sensing system, enabling location of disturbance in a Sagnac loop interferometer;Dakin,1987
3. Sagnac sensor concepts;Udd,1991
4. Distributed fiber optic acoustic sensor for leak detection;Kurmer,1991
5. Fiber optic distributed sensing by two-loop Sagnac interferometer;Fang;Opt. Lett.,1996