Radiation Effects on Long Period Fiber Gratings: A Review

Sensors

Flavio Esposito¹  Stefania Campopiano¹  Agostino Iadicicco¹  Anubhav Srivastava¹ 

[1] Department of Engineering, University of Naples “Parthenope”, Centro Direzionale Isola C4, 80143 Napoli, Italy;

关键词: fiber optic sensors;    long period gratings;    optical fibers;    radiations;   

DOI  :  10.3390/s20092729

来源: DOAJ

【 摘 要 】

Over the last years, fiber optic sensors have been increasingly applied for applications in environments with a high level of radiation as an alternative to electrical sensors, due to their: high immunity, high multiplexing and long-distance monitoring capability. In order to assess the feasibility of their use, investigations on optical materials and fiber optic sensors have been focusing on their response depending on radiation type, absorbed dose, dose rate, temperature and so on. In this context, this paper presents a comprehensive review of the results achieved over the last twenty years concerning the irradiation of in-fiber Long Period Gratings (LPGs). The topic is approached from the point of view of the optical engineers engaged in the design, development and testing of these devices, by focusing the attention on the fiber type, grating fabrication technique and properties, irradiation parameters and performed analysis. The aim is to provide a detailed review concerning the state of the art and to outline the future research trends.

【 授权许可】

Unknown