Crosstalk analysis in homogeneous multi-core two-mode fiber under bent condition

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We analyze the inter-core crosstalk in homogeneous multi-core two-mode fibers (MC-TMFs) under bent condition by using the coupled-mode equations. In particular, we investigate the effects of the intra-core mode coupling on the inter-core crosstalk for two different types of MC-TMFs at various bending radii. The results show that the inter-core homo-mode crosstalk of LP11 mode is dominant under the gentle fiber bending condition due to its large effective area. However, as the fiber bending becomes tight, the intra-core mode coupling is significantly enhanced and consequently makes all the inter-core crosstalk levels comparable to each other regardless of the mode. A similar tendency is observed at a reduced bending radius when the difference in the propagation constants between modes is large and core pitch is small.
Publisher
OPTICAL SOC AMER
Issue Date
2015-04
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.23, no.8, pp.9649 - 9657

ISSN
1094-4087
DOI
10.1364/OE.23.009649
URI
http://hdl.handle.net/10203/198561
Appears in Collection
EE-Journal Papers(저널논문)
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