In-line interferometer based on intermodal coupling of a multicore fiber

Title
In-line interferometer based on intermodal coupling of a multicore fiber
Authors
윤민석이상배한영근
Keywords
Fiber optics; fiber design & fabrication; fiber optic components; fiber optic sensor
Issue Date
2015-07
Publisher
Optics express
Citation
VOL 23, NO 14, 18316-18322
Abstract
An in-line interferometer based on the intermodal coupling of a multicore fiber (MCF) is proposed and experimentally demonstrated. The in-line interferometer is fabricated by adiabatically tapering the MCF. The intermodal coupling of the in-line interferometer is strongly affected by the waist diameter of the MCF, which changes the evanescent field and the pitch size. The effect of the waist diameters of the MCF on the intermodal coupling in the in-line interferometer is theoretically and experimentally investigated. The transmission oscillations of the multiple core modes resulting from the intermodal coupling and interference substantially become stronger as the waist diameter decreases. The extinction ratio and the oscillation periodicity of the transmissions oscillations are changed by the waist diameter. (C) 2015 Optical Society of America
URI
http://pubs.kist.re.kr/handle/201004/51232
ISSN
10944087
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KIST Publication > Article
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