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Side coupling of multiple optical channels by spiral patterned zinc oxide coatings on large core plastic optical fibers
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2016 (English)In: Micro & Nano Letters, ISSN 1750-0443, E-ISSN 1750-0443, Vol. 11, no 2, 122-126 p.Article in journal (Refereed) PublishedText
Abstract [en]

Improved optical side coupling efficiency was demonstrated for spiral patterned zinc oxide (ZnO) nanorods coated large core plastic optic fibers (POFs) as opposed to unpatterned continuous coatings. ZnO nanorods were grown by the hydrothermal method directly onto POF surfaces. Nanorods coating enhanced coupling inside the fiber by scattering light but were also capable of causing leakage. Structuring the growth to specific regions allows scattering from different segments along the fiber to contribute to the total coupled power. ZnO nanorods growth time of 12 h and temperature of 90 degrees C provided the best coupling voltage. Side coupling was measured to be a factor of 2.2 times better for spiral patterned coatings as opposed to unpatterned coatings. The formation of multiple segments was as well used for multiple-wavelength channels excitation where different bands were side coupled from different segments.

Place, publisher, year, edition, pages
2016. Vol. 11, no 2, 122-126 p.
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Atom and Molecular Physics and Optics
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URN: urn:nbn:se:kth:diva-184558DOI: 10.1049/mnl.2015.0452ISI: 000371354700015ScopusID: 2-s2.0-84958956972OAI: oai:DiVA.org:kth-184558DiVA: diva2:917051
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QC 20160405

Available from: 2016-04-05 Created: 2016-04-01 Last updated: 2016-04-05Bibliographically approved

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Dutta, Joydeep
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Functional Materials, FNM
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