Characterisation of effective mode-field diameter of coupled multi-core fibre

K. Nakajima; K. Saito; Y. Goto; C. Fukai; T. Kurashima

doi:10.1117/12.2058837

2 June 2014 Characterisation of effective mode-field diameter of coupled multi-core fibre

K. Nakajima, K. Saito, Y. Goto, C. Fukai, T. Kurashima

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 9157AG (2014) https://doi.org/10.1117/12.2058837
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

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.

Citation Download Citation

K. Nakajima, K. Saito, Y. Goto, C. Fukai, and T. Kurashima "Characterisation of effective mode-field diameter of coupled multi-core fibre", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 9157AG (2 June 2014); https://doi.org/10.1117/12.2058837

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