(INVITED)Interferometric Fabry-Perot sensors for ultrasound detection on the tip of an optical fiber

To satisfy the requirements of the precision medicine, the demand for miniaturized online, real time and localized diagnostic tools is constantly increasing. Local acoustic inspection is assuming a large interest with particular reference to both oncology and neurology. With these considerations in mind, in this paper, we focus our attention on a comparative analysis of the best available solutions which can be exploited to realize a high frequency acoustic detector based on Fabry- Perot interferometry, located on the tip of an optical fiber.