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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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. |
format | Online Article Text |
id | pubmed-6415366 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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