Author Affiliations
Abstract
1 INESC TEC, Rua do Campo Alegre 687, 4169-007 Porto, Portugal and Dept. de Física e Astronomia da Faculdade de Ciencias da Universidade do Porto, Rua do Campo Alegre 687, 4169-007 Porto, Portugal
2 Public University of Navarra, Dept. of Electric and Electronic Engineering, Campus de Arrosadía, Pamplona, Spain.
The effect of an erbium-doped fiber amplifier (EDFA) placed inside the fiber ring of a cavity ring down (CRD) configuration is studied. The limitations and advantages of this configuration are discussed, and the study of the ring-down time as a function of the current applied and gain to the EDFA is also presented. In this case, the power fluctuations in the output signal are strongly dependent on the cavity ring-down time with the EDFA gain.
Cavity ring down EDFA multimode laser optical fibers. Photonic Sensors
2016, 6(4): 324
Author Affiliations
Abstract
Department of Electric and Electronic Engineering, Public University of Navarra, 31006 Pamplona, Spain
The 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.
Self-healing robust resilience fiber-optic sensor multiplexing fiber Bragg gratings (FBGs) fiber-optic networks Photonic Sensors
2012, 2(4): 366
