Low loss hollow-core anti-resonant fiber in infrared band
Received:July 17, 2019  Revised:December 18, 2019  download
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Author NameAffiliationE-mail
HAN Ying The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China hanyingysu@163.com 
DONG Ting-Ting The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China dongtingting_0212@163.com 
QING Yuan The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China qyqingyuan156@163.com 
SONG Peng School of Physics and Technology, University of Jinan, Jinan 250022, China  
ZHU Wei-Zhen The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China zweizl123@163.com 
ZHOU Fan-Di The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China 815957539@163.com 
LI Zheng-Ran The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China tingchanzhixia@163.com 
WANG Wei The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China wangwei@ysu.edu.cn 
HOU Lan-Tian The key laboratory for special fiber and fiber sensor of Hebei Province, Institute of information science and technology, Yanshan University, Qinhuangdao 066004, China  
Abstract:A hollow-core anti-resonant fiber is proposed with low confinement loss in infrared band. The cladding tube is a semicircular semi-elliptical splicing structure. The full vector finite element method is used for the simulation. The semi-minor axis of the semi-elliptical tube is equal to the radius of the semicircular tube. A semi-circular tube and a semi-elliptical tube are spliced to form a semi-circular semi-elliptical cladding tube. The negative curvature and the positive curvature are changed by improving the structure parameters of the tube. The purpose of this paper is to study the loss characteristics of the positive and negative curvature of the cladding tube, and to design a low loss hollow core anti-resonant fiber applied in the 1.5~3.0 μm band. The results show that the effect of limiting loss is better when the negative curvature decreases and the positive curvature increases. The lowest confinement loss is 8.22×10-2 dB/km at the wavelength of 2.1 μm when the semi-circular tube is close to the core and the elliptical tube is far away from the core, as well as the circular radius ry=25 μm, the semi-major axis of the ellipse rx=65 μm, the semi-minor axis of the ellipse ry=25 μm.
keywords:infrared band  hollow-core anti-resonant fiber  negative curvature  confinement loss
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Copyright:《Journal of Infrared And Millimeter Waves》