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作 者:Shuai Sun Wei Shi Quan Sheng Shijie Fu Zhongbao Yan Shuai Zhang Junxiang Zhang Chaodu Shi Guizhong Zhang Jianquan Yao 孙帅;史伟;盛泉;付士杰;闫忠宝;张帅;张钧翔;史朝督;张贵忠;姚建铨(Institute of Laser and Optoelectronics,School of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China;Key Laboratory of Optoelectronic Information Science and Technology(Ministry of Education),Tianjin University,Tianjin 300072,China)
机构地区:[1]Institute of Laser and Optoelectronics,School of Precision Instrument and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China [2]Key Laboratory of Optoelectronic Information Science and Technology(Ministry of Education,Tianjin University,Tianjin 300072,China
出 处:《Chinese Physics B》2021年第12期430-436,共7页中国物理B(英文版)
基 金:Project supported by the National Natural Science Foundation of China(Grant No.62075159);the National Key Research and Development Program of China(Grant No.2017YFF0104603);the 111 Project of China(Grant No.B17031);the Major Scientific and Technological Innovation Projects of Key Research and Development Plans in Shandong Province,CHina(Grant No.2019JZZY020206)。
摘 要:Based on the index-induced mode coupling between the higher-order mode in core and the fundamental mode in cladding tubes,the single-mode operation can be realized in any antiresonant fibers(ARFs)when satisfying that the area ratio of cladding tube and core is about 0.46:1,and this area ratio also should be modified according to the shape and the number of cladding tubes.In the ARF with nodal core boundary,the mode in core also can couple with the mode in the wall of core boundary,which can further enhance the suppression of high-order mode.Accordingly,an ARF with conjoint semi-elliptical cladding tubes realizes a loss of higher-order mode larger than 30 dB/m;simultaneously,a loss of fundamental mode loss less than 0.4 dB/m.
关 键 词:TERAHERTZ mode coupling single-mode fiber
分 类 号:TN253[电子电信—物理电子学] O441.4[理学—电磁学]
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