Abstract: In this paped we described briefly the activities done in the frame of development of a system for contactless detection of the vibrations of the middle ear ossicle. The system has been constructed in the form of a fiber-optic vibrometer, which can be used as the microphone of a totally implantable hearing aid. The current state of the art is described and the initial measurements are presented and commented upon.
Key words: Micro-systems, micro-optics, fiber-optic vibrometer.