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Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids

A laser-assisted tuning method of whispering gallery modes (WGMs) in a cylindrical microresonator based on magnetic-fluids-infiltrated microstructured optical fibres (MFIMOFs, where MF and MOF respectively refer to magnetic fluid and microstructured optical fibre) is proposed, experimentally demonst...

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Autores principales: Lin, Wei, Zhang, Hao, Liu, Bo, Song, Binbin, Li, Yuetao, Yang, Chengkun, Liu, Yange
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4668574/
https://www.ncbi.nlm.nih.gov/pubmed/26632445
http://dx.doi.org/10.1038/srep17791
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author Lin, Wei
Zhang, Hao
Liu, Bo
Song, Binbin
Li, Yuetao
Yang, Chengkun
Liu, Yange
author_facet Lin, Wei
Zhang, Hao
Liu, Bo
Song, Binbin
Li, Yuetao
Yang, Chengkun
Liu, Yange
author_sort Lin, Wei
collection PubMed
description A laser-assisted tuning method of whispering gallery modes (WGMs) in a cylindrical microresonator based on magnetic-fluids-infiltrated microstructured optical fibres (MFIMOFs, where MF and MOF respectively refer to magnetic fluid and microstructured optical fibre) is proposed, experimentally demonstrated and theoretically analysed in detail. The MFIMOF is prepared by infiltrating the air-hole array of the MOF using capillary action effect. A fibre-coupling system is set up for the proposed MFIMOF-based microresonator to acquire an extinction ratio up to 25 dB and a Q-factor as large as 4.0 × 10(4). For the MF-infiltrated MOF, the light propagating in the fibre core region would rapidly spread out and would be absorbed by the MF-rod array cladding to induce significant thermal effect. This has been exploited to achieve a WGM resonance wavelength sensitivity of 0.034 nm/mW, which is ~20 times higher than it counterpart without MF infiltration. The wavelength response of the resonance dips exhibit linear power dependence, and owing to such desirable merits as ease of fabrication, high sensitivity and laser-assisted tunability, the proposed optical tuning approach of WGMs in the MFIMOF would find promising applications in the areas of optical filtering, sensing, and signal processing, as well as future all-optical networking systems.
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spelling pubmed-46685742015-12-09 Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids Lin, Wei Zhang, Hao Liu, Bo Song, Binbin Li, Yuetao Yang, Chengkun Liu, Yange Sci Rep Article A laser-assisted tuning method of whispering gallery modes (WGMs) in a cylindrical microresonator based on magnetic-fluids-infiltrated microstructured optical fibres (MFIMOFs, where MF and MOF respectively refer to magnetic fluid and microstructured optical fibre) is proposed, experimentally demonstrated and theoretically analysed in detail. The MFIMOF is prepared by infiltrating the air-hole array of the MOF using capillary action effect. A fibre-coupling system is set up for the proposed MFIMOF-based microresonator to acquire an extinction ratio up to 25 dB and a Q-factor as large as 4.0 × 10(4). For the MF-infiltrated MOF, the light propagating in the fibre core region would rapidly spread out and would be absorbed by the MF-rod array cladding to induce significant thermal effect. This has been exploited to achieve a WGM resonance wavelength sensitivity of 0.034 nm/mW, which is ~20 times higher than it counterpart without MF infiltration. The wavelength response of the resonance dips exhibit linear power dependence, and owing to such desirable merits as ease of fabrication, high sensitivity and laser-assisted tunability, the proposed optical tuning approach of WGMs in the MFIMOF would find promising applications in the areas of optical filtering, sensing, and signal processing, as well as future all-optical networking systems. Nature Publishing Group 2015-12-03 /pmc/articles/PMC4668574/ /pubmed/26632445 http://dx.doi.org/10.1038/srep17791 Text en Copyright © 2015, Macmillan Publishers Limited 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 to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Lin, Wei
Zhang, Hao
Liu, Bo
Song, Binbin
Li, Yuetao
Yang, Chengkun
Liu, Yange
Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title_full Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title_fullStr Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title_full_unstemmed Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title_short Laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
title_sort laser-tuned whispering gallery modes in a solid-core microstructured optical fibre integrated with magnetic fluids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4668574/
https://www.ncbi.nlm.nih.gov/pubmed/26632445
http://dx.doi.org/10.1038/srep17791
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