Phase sensitivity of fundamental mode to external atmospheric pressure for hollow-core photonic bandgap fiber

被引：0
作者：
Xu, Xiaobin [1 ]
Liu, Yangqian [1 ]
Gao, Fuyu [1 ]
Song, Ningfang [1 ]
机构：
[1] Beihang Univ, Dept Optoelect Engn, Xueyuan Rd 37, Beijing 100191, Peoples R China
来源：
OPTICAL FIBER TECHNOLOGY | 2018年 / 43卷
基金：
中国国家自然科学基金;
关键词：
Fiber optics; Gyroscopes; Microstructured fibers; TRANSMISSION WINDOWS; GYROSCOPE; TEMPERATURE;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Hollow-core photonic bandgap fibers (HC PBFs) are suitable for spaceborne fiber optical gyroscopes owing to their excellent environmental adaptability. However, hundreds of small holes full of air at one atmosphere of pressure can make the HC-PBF sensitive to external atmospheric pressure. In this study, we investigated the phase sensitivity of the fundamental mode to external atmospheric pressure for the HC PBF, and the experimental result indicates that the phase sensitivity is approximately 1.6 x 10(-5) ppm/Pa, which is mostly contributed by the change in the pressure-induced length. Through the choice of coating, the phase sensitivity to external atmospheric pressure can be reduced by about a factor of five compared to current HC PBFs, and the excellent temperature performance can be maintained at the same time.
引用
收藏
页码：153 / 157
页数：5
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