| 摘要 |
<p>An integrated optical gyro sensor comprising a Sagnac interferometer, having a light source, a plurality of optical waveguides and an optical coupling arrangement integrated onto a substrate. The substrate has multiple light waveguides and detectors integrated therein. The primary waveguide has a roughly spiral shape with its respective ends disposed approximately 90 degrees to each other. The optical coupling arrangement comprises four beamsplitters and a reflector, which couple light signals to the primary waveguide and to two light detectors. The relative phase shift of the counterpropagating light signals in the primary waveguide is detected. The phase shift measurement is proportional to the physical inertial rotation of the sensor. <IMAGE></p> |
