A simple intensity modulation based fiber-optic accelerometer

Miniature multicore optical fiber vibration sensor

“…As a result, different types of fiber optic sensors can be applied to monitoring vibrations. Intensity-modulated vibration sensors are the simplest ones, but their accuracy is poor [5][6][7][8][9][10]. Interferometric vibration sensors are highly sensitive but, in general, they tend to be complex and, hence, impractical [11][12][13][14][15].…”