Towards Chip-integrated Sagnac Gyroscopes
Monday | March 25, 2024 | 9:30 - 11:30
Modern optical gyroscopes use long coiled optical fiber paths (fiber optic gyroscopes [1]) or resonant recirculation (ring laser gyroscopes [2]) to greatly enhance the Sagnac effect for rotation measurement. In recent years, the possibility of chip-based optical gyroscopes has garnered considerable attention. Such optical gyrocopes could enjoy the advantages of integration and scalable manufacturing, and would offer rugged designs for operation in challenging environments [3]. Compact or chip-based ring laser gyroscopes [4–6], passive resonant gyroscopes [7–10], and interferometric gyroscopes [11] have been reported. Here we first review some of the enabling technologies of chip-integrated designs, overview recent results, and then focus on a chip-based laser gyroscope that has been used to measure the Earth’s rotation [6]. We conclude by considering prospects for boosting device performance based on recent measurements of optical loss in CMOS compatible dielectrics [12].