A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator

An electro-optic (EO) modulator using a TiO(2) slot hybrid waveguide has been designed and fabricated. Optical mode calculations revealed that the mode was primarily confined within the slots when using a double-slot configuration, thus achieving a high EO activity experimentally. The TiO(2) slots a...

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Autores principales: Qiu, Feng, Spring, Andrew M., Maeda, Daisuke, Ozawa, Masa-aki, Odoi, Keisuke, Otomo, Akira, Aoki, Isao, Yokoyama, Shiyoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4338480/
https://www.ncbi.nlm.nih.gov/pubmed/25708425
http://dx.doi.org/10.1038/srep08561
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author Qiu, Feng
Spring, Andrew M.
Maeda, Daisuke
Ozawa, Masa-aki
Odoi, Keisuke
Otomo, Akira
Aoki, Isao
Yokoyama, Shiyoshi
author_facet Qiu, Feng
Spring, Andrew M.
Maeda, Daisuke
Ozawa, Masa-aki
Odoi, Keisuke
Otomo, Akira
Aoki, Isao
Yokoyama, Shiyoshi
author_sort Qiu, Feng
collection PubMed
description An electro-optic (EO) modulator using a TiO(2) slot hybrid waveguide has been designed and fabricated. Optical mode calculations revealed that the mode was primarily confined within the slots when using a double-slot configuration, thus achieving a high EO activity experimentally. The TiO(2) slots also acted as an important barrier to induce an enhanced DC field during the poling of the EO polymer and the driving of the EO modulator. The hybrid phase modulator exhibited a driving voltage (V(π)) of 1.6 V at 1550 nm, which can be further reduced to 0.8 V in a 1 cm-long push-pull Mach–Zehnder interferometer (MZI) structure. The modulator demonstrated a low propagation loss of 5 dB/cm and a relatively high end-fire coupling efficiency.
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spelling pubmed-43384802015-03-04 A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator Qiu, Feng Spring, Andrew M. Maeda, Daisuke Ozawa, Masa-aki Odoi, Keisuke Otomo, Akira Aoki, Isao Yokoyama, Shiyoshi Sci Rep Article An electro-optic (EO) modulator using a TiO(2) slot hybrid waveguide has been designed and fabricated. Optical mode calculations revealed that the mode was primarily confined within the slots when using a double-slot configuration, thus achieving a high EO activity experimentally. The TiO(2) slots also acted as an important barrier to induce an enhanced DC field during the poling of the EO polymer and the driving of the EO modulator. The hybrid phase modulator exhibited a driving voltage (V(π)) of 1.6 V at 1550 nm, which can be further reduced to 0.8 V in a 1 cm-long push-pull Mach–Zehnder interferometer (MZI) structure. The modulator demonstrated a low propagation loss of 5 dB/cm and a relatively high end-fire coupling efficiency. Nature Publishing Group 2015-02-24 /pmc/articles/PMC4338480/ /pubmed/25708425 http://dx.doi.org/10.1038/srep08561 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Qiu, Feng
Spring, Andrew M.
Maeda, Daisuke
Ozawa, Masa-aki
Odoi, Keisuke
Otomo, Akira
Aoki, Isao
Yokoyama, Shiyoshi
A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title_full A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title_fullStr A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title_full_unstemmed A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title_short A hybrid electro-optic polymer and TiO(2) double-slot waveguide modulator
title_sort hybrid electro-optic polymer and tio(2) double-slot waveguide modulator
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4338480/
https://www.ncbi.nlm.nih.gov/pubmed/25708425
http://dx.doi.org/10.1038/srep08561
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