Light coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating

Wu, Qiang, Semenova, Yuliya, Ma, Youqiao, Wang, Pengfei, Guo, Tuan, Jin, Long and Farrell, Gerald (2011) Light coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating. Journal of Lightwave Technology, 29 (24). pp. 3683-3688. ISSN 0733-8724

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Official URL: http://jlt.osa.org/abstract.cfm?URI=jlt-29-24-3683

Abstract

We propose a novel optical coupling technique based on evanescent fieldcoupling between a singlemode- multimode-singlemode (SMS) fiber structureand a long period fiber grating (LPFG). By parallel placement of the two fibersections in close proximity to each other, the excited multi-cladding modesfrom the SMS fiber section can be selectively coupled to the guided mode inthe LPFG, and vice versa. A theoretical analysis based for such a structureis undertaken and the simulated results are verified by experiments demonstratinga maximum coupling efficiency of up to 1.66\% (which could be improved to 27.5\%in theory) over a broadband resonance (42 nm with a 3 dB bandwidth).

Item Type: Article
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Related URLs:
Depositing User: Ay Okpokam
Date Deposited: 26 May 2015 09:57
Last Modified: 10 Aug 2015 11:16
URI: http://nrl.northumbria.ac.uk/id/eprint/22557

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