Coupling ability comparison in an optical fiber with single stress element

•Possible couplings between fundamental modes and other modes are revealed.•Strongest coupling is occurred between fundamental modes HE11+andHE11-.•Coupling ability is decreased as the order of higher modes is increased. The stress distribution in an optical fiber with single stress element is calcu...

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Bibliographic Details
Published in:Optical fiber technology 2021-05, Vol.63, p.102511, Article 102511
Main Authors: Ji, Minning, Zhan, Tingting
Format: Article
Language:English
Subjects:
coupling ability
Optical fiber
single stress element
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Summary:•Possible couplings between fundamental modes and other modes are revealed.•Strongest coupling is occurred between fundamental modes HE11+andHE11-.•Coupling ability is decreased as the order of higher modes is increased. The stress distribution in an optical fiber with single stress element is calculated and analyzed. The stress oscillation magnitudes related to mode coupling are characterized. The coupling ability between the fundamental mode HE11 and other modes is demonstrated and compared. The strongest coupling is occurred between the fundamental modes HE11+andHE11-. The coupling strength fromHE11-HE21, HE11-HE22, HE11-HE31, HE11-HE41, HE11-HE12 and HE11-HE51 is decreased in turn. Possible coupling between the fundamental mode HE11 and other higher order modes is much smaller and can be ignored.
ISSN:1068-5200
1095-9912
DOI:10.1016/j.yofte.2021.102511