摘要
提出了一种新型的抗弯曲大模场面积光纤方案--双沟槽辅助型扇形瓣状光纤。与传统的扇形瓣状光纤及单沟槽辅助扇形瓣状光纤相比,该结构具有更大的模场面积和更好的高阶模抑制能力。研究结果表明:在弯曲半径为20 cm,波长为1.55μm时,光纤的有效模场面积可达1096μm^2,高阶模与基模损耗比大于100;此外,所提出的光纤对弯曲方向不敏感,弯曲方向在[-180°,180°]范围内变化时,光纤性能保持稳定。
A novel double-trench-assisted fan-segmented cladding fiber(SCF) is proposed and researched. Compared with traditional fan-SCF and single-trench-assisted fan-SCF, the proposed fiber structure has a larger mode area and better high-order mode(HOM) suppression. Numerical investigations show that, when the bending radius is 20 cm, the effective mode area of the fundamental mode(FM) reaches up to 1096 μm^2 and the loss ratio between HOM and the FM is greater than 100 at a wavelength of 1.55 μm. In addition, the proposed fiber structure is insensitive to the bending orientation and its properties remain stable with a bending orientation ranging from-180° to 180°.
作者
王冠利
宁提纲
郑晶晶
李晶
许建
魏淮
裴丽
马绍朔
Wang Guanli;Ning Tigang;Zheng Jingjing;Li Jing;Xu Jian;Wei Huai;Pei Li;Ma Shaoshuo(Key Laboratory of All Optical Network&Advanced Telecommunication Network(Ministry of Education),School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing 100044,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2019年第10期132-140,共9页
Acta Optica Sinica
基金
国家自然科学基金(61827817,61525501)
关键词
光纤光学
光纤设计与制造
大模场面积
抗弯曲
单模运转
fiber optics
design and manufacture of fiber
large mode area
bend-resistant
single-mode operation
