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研究了高灵敏度悬臂梁与光纤端面构筑的低精细度FP型光腔中光驱动的悬臂梁振动的双稳效应。通过改变输入到光腔内的激光功率,检测与之相应的悬臂梁的形变。在实验中发现悬臂梁的形变随激光功率的改变呈现非线性变化的关系,在激光功率增大到一定阈值时可以诱导产生光力双稳效应。通过改变光腔初始腔长成功实现了对产生光力双稳效应阈值的调节。
The bistable vibration of light-driven cantilever beam in low-precision FP-type optical cavity with high sensitivity cantilever beam and fiber end face is studied. By changing the laser power input into the optical cavity, the deformation of the cantilever corresponding thereto is detected. In the experiment, it is found that the deformation of the cantilever changes non-linearly with the change of the laser power. When the laser power increases to a certain threshold, the light-power bistable effect can be induced. By adjusting the initial cavity length of the optical cavity, the adjustment of the bistable effect threshold is achieved.