**6. Conclusions**

Recent developments of Integrated Optics and Photonics components allow implementing complex, rugged, robust and miniaturised interferometric systems, which applications span all the fields of sensing interferometry also including the possibility of upcoming quantum effects applications, already shortly mentioned in paragraph 4. In this work, a general overview of the present state of the art was presented, with the intention to stimulate the interests of investigators and researchers operating in multidisciplinary contexts and in general in all fields of sensing and analytics.
