Solutions for Modal Squeeze in Dual-Concentric Core Photonic Crystal Fibers

Dual-concentric core photonic crystal fibers (DCC-PCF) were a kind of dispersion compensating fiber with ultrahigh negative dispersion. However, they usually have an undesirable characteristic, called "modal squeeze" in this letter, which causes difficulty in achieving a single-mode operat...

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Bibliographic Details
Published in:IEEE photonics technology letters 2017-06, Vol.29 (11), p.849-852
Main Authors: Hsu, Jui-Ming, Tsai, Tzu-Yi
Format: Article
Language:English
Subjects:
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Manufacturing
Optical fiber communication
Optical fiber devices
Optical fiber dispersion
Optical fibers
photonic crystal fibers
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Summary:Dual-concentric core photonic crystal fibers (DCC-PCF) were a kind of dispersion compensating fiber with ultrahigh negative dispersion. However, they usually have an undesirable characteristic, called "modal squeeze" in this letter, which causes difficulty in achieving a single-mode operation. This letter discusses a phenomenon of modal squeeze, and proposes a solution to avoid it. Finally, we give designing examples of DCC-PCFs for avoiding the modal squeeze and operating in single mode.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2016.2629468