Silicon photonics based multi-functional integrated optical circuit with hybrid integrated III-V photodiode for fiber optics gyroscope application

We demonstrate a fiber optics gyroscope by employing a silicon photonics multi-function integrated optical circuit with hybrid integrated photodiode on top of grating coupler. This approach enables a high polarization extinction ratio of 51.3 dB when the light propagates from fiber coil to the photodiode, thus enables tactical-grade gyroscope performance.