Commercializing optomechanical sensors: from the classical to quantum regime

摘要

Cavity optomechanical systems show great promise as force and displacement sensors, with scope to operateacross the classical to quantum regimes. I will discuss the commercial development of an optical whispering gallerymode (WGM) accelerometer, which relies on a dispersive and dissipative coupling between the cavity resonanceand the motion of the cavity. The accelerometer operates at a sensitivity of micro-g Hz~（-1/2） (g=9.81 ms~（-2）) withplans to approach nano-g Hz~（-1/2） through tailoring the mechanical and optical properties. I also describe the firstprototype assembly, results from outdoor eld-trials, and recent work using micro-electro-mechanical systemsengineering to produce a chip-scale device.