Silicon photonics multi-function integrated optic circuit with reduced interface reflection for fiber optic gyroscope applications

We demonstrate an IFOG by employing a silicon photonics multi-function integrated optic circuit (Si-MIOC). Its interface reflection is reduced through device and system design optimization and is confirmed by OFDR measurements. The IFOG system with new Si-MIOC design enables an angle random walk of 0.063 °/rt-hr, which is about 35% lower as compared to the value we obtained previously.