Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers
The acousto-optic mode coupling in grapefruit microstructured optical fibers (GMOFs) has been investigated. Due to the presence of grape-like large air holes in the fiber cladding, unequal acoustic modulation is generated, and orthogonal acoustic gratings come into being in the GMOF, which is verifi...
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doaj-27d06d0a565743b3b52930d5054920992021-03-29T17:13:25ZengIEEEIEEE Photonics Journal1943-06552013-01-01532201610220161010.1109/JPHOT.2013.22646616518161Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured FibersHao Zhang0Minghui Qiu1Yinping Miao2Bo Liu3Shecheng Gao4Hongguang Dong5<formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula>Key Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, ChinaKey Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, China<formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula> Tianjin Key Laboratory of Film Electronic and Communication Device, School of Electronics Information Engineering , Tianjin University of Technology, Tianjin, ChinaKey Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, ChinaKey Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, ChinaKey Laboratory of Optical Information Science and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin, ChinaThe acousto-optic mode coupling in grapefruit microstructured optical fibers (GMOFs) has been investigated. Due to the presence of grape-like large air holes in the fiber cladding, unequal acoustic modulation is generated, and orthogonal acoustic gratings come into being in the GMOF, which is verified by our experimental observation on the mode profile of resonance peaks. The experimental results indicate that two resonance peaks originating from the mode coupling in acoustic-birefringence-induced orthogonal acoustic gratings simultaneously exist in the transmission spectrum, and the wavelength spacing between them reaches as large as 227.4 nm, which indicates that a greatly enhanced acoustic birefringence has been introduced in the GMOF. And moreover, some important grating features, including frequency-dependent grating period, frequency responses of acoustic phase velocity, and acoustic dispersion, have been investigated for the orthogonal acoustic gratings. These studies would be of importance for understanding the acoustic birefringence mechanism in MOF-based acoustic gratings and development of related acousto-optic devices.https://ieeexplore.ieee.org/document/6518161/Fiber opticsphotonic crystal fibersgratingsacousto-optical devices |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hao Zhang Minghui Qiu Yinping Miao Bo Liu Shecheng Gao Hongguang Dong |
spellingShingle |
Hao Zhang Minghui Qiu Yinping Miao Bo Liu Shecheng Gao Hongguang Dong Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers IEEE Photonics Journal Fiber optics photonic crystal fibers gratings acousto-optical devices |
author_facet |
Hao Zhang Minghui Qiu Yinping Miao Bo Liu Shecheng Gao Hongguang Dong |
author_sort |
Hao Zhang |
title |
Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers |
title_short |
Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers |
title_full |
Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers |
title_fullStr |
Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers |
title_full_unstemmed |
Acoustic-Birefringence-Induced Orthogonal Acousto-Optic Gratings in Grapefruit Microstructured Fibers |
title_sort |
acoustic-birefringence-induced orthogonal acousto-optic gratings in grapefruit microstructured fibers |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2013-01-01 |
description |
The acousto-optic mode coupling in grapefruit microstructured optical fibers (GMOFs) has been investigated. Due to the presence of grape-like large air holes in the fiber cladding, unequal acoustic modulation is generated, and orthogonal acoustic gratings come into being in the GMOF, which is verified by our experimental observation on the mode profile of resonance peaks. The experimental results indicate that two resonance peaks originating from the mode coupling in acoustic-birefringence-induced orthogonal acoustic gratings simultaneously exist in the transmission spectrum, and the wavelength spacing between them reaches as large as 227.4 nm, which indicates that a greatly enhanced acoustic birefringence has been introduced in the GMOF. And moreover, some important grating features, including frequency-dependent grating period, frequency responses of acoustic phase velocity, and acoustic dispersion, have been investigated for the orthogonal acoustic gratings. These studies would be of importance for understanding the acoustic birefringence mechanism in MOF-based acoustic gratings and development of related acousto-optic devices. |
topic |
Fiber optics photonic crystal fibers gratings acousto-optical devices |
url |
https://ieeexplore.ieee.org/document/6518161/ |
work_keys_str_mv |
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1724198103667441664 |