Integrated optical chip for fiber optic gyroscope

摘要

The present invention relates to an Integrated Optical Chip (IOC) having improved Polarization Extinction Ratio (PER) of an optical signal being embedded within Fiber Optic Gyroscope (FOG).The FOG comprising at least one optical waveguide embedded on a chemical substrate; the optical waveguide is in the form of polarizer, splitter and electrodes for phase modulation. The PER of IOC has been enhanced by providing bending at the input optical waveguide and by grinding the side wall of the IOC. A process of determining angular velocity by using an IOC having enhanced Polarization Extinction Ratio (PER) integrated with Fiber Optic Gyroscope (FOG) is also disclosed. The process, disclosed herein, comprising sending an optical signal by a light source; allowing the split optical signal received from the coupler to pass through the IOC and a loop of fiber; receiving the optical signal from the IOC by the coupler and combining the same; and detecting the combined optical signal by an optical detector in order to determine the angular velocity. [Figures1, 2 &3]