Interferometric Optical Gyroscope Based on an Integrated Si3N4 Low-Loss Waveguide Coil

• DOI: 10.1109/jlt.2017.2765918
• Publication Date: 2017-10-24T20:47:42Z
• Authors: Sarat Gundavarapu; Michael Belt; Taran A. Huffman; Minh A. Tran; Tin Komljenovic; John E. Bowers; Daniel J. Blumenthal
• Keywords: Waveguide; Fibre optic gyroscope; Optical path; Realization (probability); Ring Laser Gyroscope

We describe the measurement and characterization of an interferometric optical gyroscope that uses integrated 3-m large-area silicon nitride waveguide coil with loss <;0.78 dB/m is compatible wafer-scale integration. The angle random walk bias instability were measured to be 8.52°/h <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1/2</sup> 58.7°/h, respectively. performance comparable a commercial rate grade gyroscope, demonstrating chip-scale integration feasible path low cost, power, compact implementation realization longer coils will expand use this technology more demanding navigation applications.