Optical gyroscopes are among the most accurate rotation measuring devices and are widely used for navigation and accurate pointing. Since the advent of photonic integrated components for communications, and with their increasing complexity, there has been interest in the possibility of chip-scale optical gyroscopes¹. Besides the potential benefits of integration, such solid-state systems would be robust and resistant to shock. Here, we report a gyroscope using Brillouin ring lasers on a silicon chip. Its stability and sensitivity enable measurement of Earth’s rotation, representing a major milestone for this new class of gyroscope.

中文翻译：

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芯片级环形激光陀螺仪测量的地球自转

光学陀螺仪是最精确的旋转测量设备之一，广泛用于导航和精确指向。自从用于通信的光子集成组件问世以来，随着复杂性的提高，人们对芯片级光学陀螺仪¹的可能性产生了兴趣。除了集成的潜在好处外，此类固态系统还将具有强大的功能并抗冲击。在这里，我们报告了在硅芯片上使用布里渊环形激光器的陀螺仪。它的稳定性和灵敏性能够测量地球的自转，这是此类新型陀螺仪的一个重要里程碑。