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Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer

Strong thermo-optic effect of polymers is useful for fabricating tunable phase-delay devices with low power consumption and wide tuning range. However, if the temperature change is increased to extend the tuning range, an attenuation of the guided light is accompanied by the refractive index gradien...

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Autores principales: Kim, Sung-Moon, Park, Tae-Hyun, Huang, Guanghao, Oh, Min-Cheol
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415366/
https://www.ncbi.nlm.nih.gov/pubmed/30966531
http://dx.doi.org/10.3390/polym10050497
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author Kim, Sung-Moon
Park, Tae-Hyun
Huang, Guanghao
Oh, Min-Cheol
author_facet Kim, Sung-Moon
Park, Tae-Hyun
Huang, Guanghao
Oh, Min-Cheol
author_sort Kim, Sung-Moon
collection PubMed
description Strong thermo-optic effect of polymers is useful for fabricating tunable phase-delay devices with low power consumption and wide tuning range. However, if the temperature change is increased to extend the tuning range, an attenuation of the guided light is accompanied by the refractive index gradient across the waveguide core. For three different waveguide structures, in this study, the optimal structure of the device for a variable phase delay line was found by investigating the attenuation and interference phenomena accompanying phase modulation. By improving the uniformity of thermal distribution across the waveguide core, a phase delay of 130π rad was obtained with an output attenuation less than 0.5 dB.
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spelling pubmed-64153662019-04-02 Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer Kim, Sung-Moon Park, Tae-Hyun Huang, Guanghao Oh, Min-Cheol Polymers (Basel) Article Strong thermo-optic effect of polymers is useful for fabricating tunable phase-delay devices with low power consumption and wide tuning range. However, if the temperature change is increased to extend the tuning range, an attenuation of the guided light is accompanied by the refractive index gradient across the waveguide core. For three different waveguide structures, in this study, the optimal structure of the device for a variable phase delay line was found by investigating the attenuation and interference phenomena accompanying phase modulation. By improving the uniformity of thermal distribution across the waveguide core, a phase delay of 130π rad was obtained with an output attenuation less than 0.5 dB. MDPI 2018-05-04 /pmc/articles/PMC6415366/ /pubmed/30966531 http://dx.doi.org/10.3390/polym10050497 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kim, Sung-Moon
Park, Tae-Hyun
Huang, Guanghao
Oh, Min-Cheol
Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title_full Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title_fullStr Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title_full_unstemmed Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title_short Optical Waveguide Tunable Phase Delay Lines Based on the Superior Thermo-Optic Effect of Polymer
title_sort optical waveguide tunable phase delay lines based on the superior thermo-optic effect of polymer
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415366/
https://www.ncbi.nlm.nih.gov/pubmed/30966531
http://dx.doi.org/10.3390/polym10050497
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