Pérez Herrera, Rosa AnaFernández Vallejo, MontserratLópez-Amo Sáinz, Manuel2014-06-202014-06-2020121674-9251 (print)2190-7439 (electronic)128910.1007/s13320-012-0083-2https://academica-e.unavarra.es/handle/2454/10946The ability to operate despite failure will become increasingly important as the use of optical sensor networks grows, and the amount of sensing information to be handled by a sensor network is increasing, especially for safety and security applications. In this review, the four categories of protection to allow service to be reestablished after a failure (dedicated/shared and line/path) are thoroughly discussed. This paper also presents an overview of the most representative robust fiber-optic sensor systems, discussing their schemes, pros and cons.application/pdfeng© The Author(s) 2012. This article is published with open access at Springerlink.com. This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.Fiber Bragg gratings (FBGs)Fiber optic networksFiber optic sensor multiplexingResilienceRobustSelf healinginfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess