Distributed multicore fiber sensors

Multicore fiber (MCF) which contains more than one core in a single fiber cladding has attracted ever increasing attention for application in optical sensing systems owing to its unique capability of independent light transmission in multiple spatial channels. Different from the situation in standar...

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Autores principales:	Zhao Zhiyong, Tang Ming, Lu Chao
Formato:	article
Lenguaje:	EN
Publicado:	Institue of Optics and Electronics, Chinese Academy of Sciences 2020
Materias:	optical fiber sensing distributed optical fiber sensing multicore fiber space-division multiplexing Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/f965ec3d382643738ea405ae0d871afe
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spelling	oai:doaj.org-article:f965ec3d382643738ea405ae0d871afe2021-11-10T10:13:05ZDistributed multicore fiber sensors2096-457910.29026/oea.2020.190024https://doaj.org/article/f965ec3d382643738ea405ae0d871afe2020-02-01T00:00:00Zhttp://www.oejournal.org/article/doi/10.29026/oea.2020.190024https://doaj.org/toc/2096-4579Multicore fiber (MCF) which contains more than one core in a single fiber cladding has attracted ever increasing attention for application in optical sensing systems owing to its unique capability of independent light transmission in multiple spatial channels. Different from the situation in standard single mode fiber (SMF), the fiber bending gives rise to tangential strain in off-center cores, and this unique feature has been employed for directional bending and shape sensing, where strain measurement is achieved by using either fiber Bragg gratings (FBGs), optical frequency-domain reflectometry (OFDR) or Brillouin distributed sensing technique. On the other hand, the parallel spatial cores enable space-division multiplexed (SDM) system configuration that allows for the multiplexing of multiple distributed sensing techniques. As a result, multi-parameter sensing or performance enhanced sensing can be achieved by using MCF. In this paper, we review the research progress in MCF based distributed fiber sensors. Brief introductions of MCF and the multiplexing/de-multiplexing methods are presented. The bending sensitivity of off-center cores is analyzed. Curvature and shape sensing, as well as various SDM distributed sensing using MCF are summarized, and the working principles of diverse MCF sensors are discussed. Finally, we present the challenges and prospects of MCF for distributed sensing applications.Zhao ZhiyongTang MingLu ChaoInstitue of Optics and Electronics, Chinese Academy of Sciencesarticleoptical fiber sensingdistributed optical fiber sensingmulticore fiberspace-division multiplexingOptics. LightQC350-467ENOpto-Electronic Advances, Vol 3, Iss 2, Pp 190024-1-190024-17 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	optical fiber sensing distributed optical fiber sensing multicore fiber space-division multiplexing Optics. Light QC350-467
spellingShingle	optical fiber sensing distributed optical fiber sensing multicore fiber space-division multiplexing Optics. Light QC350-467 Zhao Zhiyong Tang Ming Lu Chao Distributed multicore fiber sensors
description	Multicore fiber (MCF) which contains more than one core in a single fiber cladding has attracted ever increasing attention for application in optical sensing systems owing to its unique capability of independent light transmission in multiple spatial channels. Different from the situation in standard single mode fiber (SMF), the fiber bending gives rise to tangential strain in off-center cores, and this unique feature has been employed for directional bending and shape sensing, where strain measurement is achieved by using either fiber Bragg gratings (FBGs), optical frequency-domain reflectometry (OFDR) or Brillouin distributed sensing technique. On the other hand, the parallel spatial cores enable space-division multiplexed (SDM) system configuration that allows for the multiplexing of multiple distributed sensing techniques. As a result, multi-parameter sensing or performance enhanced sensing can be achieved by using MCF. In this paper, we review the research progress in MCF based distributed fiber sensors. Brief introductions of MCF and the multiplexing/de-multiplexing methods are presented. The bending sensitivity of off-center cores is analyzed. Curvature and shape sensing, as well as various SDM distributed sensing using MCF are summarized, and the working principles of diverse MCF sensors are discussed. Finally, we present the challenges and prospects of MCF for distributed sensing applications.
format	article
author	Zhao Zhiyong Tang Ming Lu Chao
author_facet	Zhao Zhiyong Tang Ming Lu Chao
author_sort	Zhao Zhiyong
title	Distributed multicore fiber sensors
title_short	Distributed multicore fiber sensors
title_full	Distributed multicore fiber sensors
title_fullStr	Distributed multicore fiber sensors
title_full_unstemmed	Distributed multicore fiber sensors
title_sort	distributed multicore fiber sensors
publisher	Institue of Optics and Electronics, Chinese Academy of Sciences
publishDate	2020
url	https://doaj.org/article/f965ec3d382643738ea405ae0d871afe
work_keys_str_mv	AT zhaozhiyong distributedmulticorefibersensors AT tangming distributedmulticorefibersensors AT luchao distributedmulticorefibersensors
_version_	1718440157488611328

Distributed multicore fiber sensors

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