https://www.synopsys.com/photonic-solutions/product-applications/photonic-integrated-circuits/sagnac-effect.html
Sagnac Effect: Interferometric Fiber Optic Gyroscope (I-FOG) | Synopsys
The interferometric fiber-optic gyroscope (I-FOG) is today an important technology for many civilian and military applications such as inertial navigation and...
fiber optic gyroscopesagnac effectinterferometricfogsynopsys