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Novel passive polymer waveguides integrated with electro-optically active ferroelectric liquid crystals
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2001 (English)In: Optical Engineering: The Journal of SPIE, ISSN 0091-3286, E-ISSN 1560-2303, Vol. 40, no 10, 2188-2198 p.Article in journal (Refereed) Published
Abstract [en]

We report the preparation and characterization of novel isotropic polymer slab waveguides made by photochemical crosslinking, and their integration with a ferroelectric liquid crystal in an integrated electro-optic modulator. The refractive index of the passive copolymer material in the device was controlled by the copolymer composition, and good agreement between measured and calculated effective indices for the guided modes of polymer films was obtained. The active ferroelectric liquid crystal exhibited a refractive index change of Deltan approximate to0.10 upon application of an ac voltage of +/- 30 V, giving an electro-optic modulation of the input TE0-mode with a contrast ratio of 11:1 and only a small polarization conversion into TM output light.

Place, publisher, year, edition, pages
2001. Vol. 40, no 10, 2188-2198 p.
Keyword [en]
waveguides, photopolymers, ferroelectric liquid crystals, integrated optics, electro-optics, lithography, wave-guides, performance
Identifiers
URN: urn:nbn:se:kth:diva-21095DOI: 10.1117/1.1403739ISI: 000172142500021OAI: oai:DiVA.org:kth-21095DiVA: diva2:339792
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Hult, Anders

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