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

Qiang Wu; Yuliya Semenova; Youqiao Ma; Pengfei Wang; Tuan Guo; Long Jin; Gerald Farrell

doi:10.1109/JLT.2011.2174140

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

Qiang Wu, Yuliya Semenova, Youqiao Ma, Pengfei Wang, Tuan Guo, Long Jin, Gerald Farrell

School of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We propose a novel optical coupling technique based on evanescent field coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating (LPFG). By parallel placement of the two fiber sections in close proximity to each other, the excited multi-cladding modes from the SMS fiber section can be selectively coupled to the guided mode in the LPFG, and vice versa. A theoretical analysis based for such a structure is undertaken and the simulated results are verified by experiments demonstrating a 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).

Original language	English
Article number	6062632
Pages (from-to)	3683-3688
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	29
Issue number	24
DOIs	https://doi.org/10.1109/JLT.2011.2174140
Publication status	Published - 2011

Keywords

Long period grating
SMS fiber structure
optical coupler
optical switch

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10.1109/JLT.2011.2174140

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

abstract = "We propose a novel optical coupling technique based on evanescent field coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating (LPFG). By parallel placement of the two fiber sections in close proximity to each other, the excited multi-cladding modes from the SMS fiber section can be selectively coupled to the guided mode in the LPFG, and vice versa. A theoretical analysis based for such a structure is undertaken and the simulated results are verified by experiments demonstrating a 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).",

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T1 - Light coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating

AU - Wu, Qiang

AU - Semenova, Yuliya

AU - Ma, Youqiao

AU - Wang, Pengfei

AU - Guo, Tuan

AU - Jin, Long

AU - Farrell, Gerald

PY - 2011

Y1 - 2011

N2 - We propose a novel optical coupling technique based on evanescent field coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating (LPFG). By parallel placement of the two fiber sections in close proximity to each other, the excited multi-cladding modes from the SMS fiber section can be selectively coupled to the guided mode in the LPFG, and vice versa. A theoretical analysis based for such a structure is undertaken and the simulated results are verified by experiments demonstrating a 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).

AB - We propose a novel optical coupling technique based on evanescent field coupling between a singlemode- multimode-singlemode (SMS) fiber structure and a long period fiber grating (LPFG). By parallel placement of the two fiber sections in close proximity to each other, the excited multi-cladding modes from the SMS fiber section can be selectively coupled to the guided mode in the LPFG, and vice versa. A theoretical analysis based for such a structure is undertaken and the simulated results are verified by experiments demonstrating a 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).

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KW - optical coupler

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

Abstract

Keywords

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