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Proceedings Paper

Characterisation of effective mode-field diameter of coupled multi-core fibre
Author(s): K. Nakajima; K. Saito; Y. Goto; C. Fukai; T. Kurashima
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Paper Abstract

We experimentally investigate the effective mode-field diameter (MFD) of coupled type multi-core fibres (MCFs). Effective MFDs of two different coupled MCFs are derived by considering the relationship with the splice loss characteristics. We also examine the applicability of conventional variable aperture (VA) and far-field pattern (FFP) scanning methods by considering the consistency with the effective MFD values. Our results show the potential of the VA method for evaluating the effective MFD characteristics of a coupled type MCF with arbitral field distribution. We also show that the effective MFD can be estimated by considering the widest and narrowest MFD values even if the field distribution becomes a crosswise. These results are useful when we examine the detail characteristics of a coupled type MCF as both transmission and/or sensing medium.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157AG (2 June 2014); doi: 10.1117/12.2058837
Show Author Affiliations
K. Nakajima, Nippon Telegraph and Telephone Corp. (Japan)
K. Saito, Nippon Telegraph and Telephone Corp. (Japan)
Y. Goto, Nippon Telegraph and Telephone Corp. (Japan)
C. Fukai, Nippon Telegraph and Telephone Corp. (Japan)
T. Kurashima, Nippon Telegraph and Telephone Corp. (Japan)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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