Investigation of longitudinal uniformity of the core structure in a hollow-core photonic bandgap fiber

被引：2
|
作者：
Xu, Xiaobin [1 ]
Yuan, Xin [1 ]
Gao, Fuyu [1 ]
Wang, Xiaoyang [1 ]
Song, Ningfang [1 ]
机构：
[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China
来源：
OPTICS EXPRESS | 2021年 / 29卷 / 23期
基金：
中国国家自然科学基金;
关键词：
Spontaneous emission - Photonic bandgap fibers - Energy gap;
D O I：
10.1364/OE.442710
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this study, a low-noise Fabry-Perot interference-based method is promoted to measure the longitudinal uniformity of the distance between six pairs of opposite silica-air interfaces within the core of a seven-cell hollow-core photonic bandgap fiber. The experimental results demonstrate that the precision of the method is improved to the subnanometer scale. Based on the test results, a model is established to study the effect of the longitudinal uniformity of the core structure on the fiber loss, and the simulation results indicate that the fiber loss could reach similar to 22.73 dB/km, which is consistent with the practical loss value. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：37534 / 37540
页数：7
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