A Loop All-Fiber Current Sensor Based on Single-Polarization Single-Mode Couplers

Low current sensitivity and insufficient system stability are two key problems in all-fiber current sensor (AFCS) studies. In order to solve the two problems, a novel AFCS combining single-polarization single-mode (SPSM) couplers and a loop structure is presented in this paper with a design that inc...

Descripción completa

Detalles Bibliográficos
Autores principales: Zhang, Hao, Jiang, Junzhen, Zhang, Yu, Chen, Huaixi, Zhao, Na, Lin, Lingyan, Qiu, Yishen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712887/
https://www.ncbi.nlm.nih.gov/pubmed/29156614
http://dx.doi.org/10.3390/s17112674
Descripción
Sumario:Low current sensitivity and insufficient system stability are two key problems in all-fiber current sensor (AFCS) studies. In order to solve the two problems, a novel AFCS combining single-polarization single-mode (SPSM) couplers and a loop structure is presented in this paper with a design that incorporates the advantages of both SPSM couplers and a loop structure. SPSM couplers are shown to simplify the AFCS system and reduce the risk of interference, and the loop structure can enhance the current sensitivity. Both theory and experiment prove that the new AFCS can simultaneously overcome two prevalent obstacles of low current sensitivity and low stability.

Ejemplares similares