A quadrature phase-shifted optical demodulation scheme has been developed for low-coherence fiber-optic Fabry-Perot interferometric sensors. The demodulator shows a great stability of phase shift. Applications to vibration/strain measurements are demonstrated.
Kent A. MurphyMichael F. GuntherAshish M. VengsarkarRichard O. Claus
Wanjin ZhangPing LuZhiyuan QuDeming Liu
Shuhuan ZhangMin PengJiyu DongShushu LiQilong Ren