The high numerical aperture photonic crystal fibers and application in astronomy

被引：1
|
作者：
Sun, Weimin [1 ]
Liu, Xiaoqi [1 ]
Yu, Haijiao [1 ]
Jiang, Yu [1 ]
Hu, Zhongwen [2 ]
Zhu, Yongtian [2 ]
机构：
[1] Harbin Engn Univ, Coll Sci, Harbin, Peoples R China
[2] Chinese Acad Sci, Nanjing Aeronaut Inst, Natl Astron Observ, Nanjing, Peoples R China
来源：
OPTICAL DESIGN AND TESTING IV | 2010年 / 7849卷
关键词：
numerical aperture; photonic crystal fibers; astronomy; loss;
D O I：
10.1117/12.871797
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
In order to detect the weak light of the protostars in astronomy, we design a new type of photonic crystal fibers with high numerical aperture. Through controlling the number and the diameter of the air holes around the central fiber core, the numerical aperture can also be adjusted to apt different applications. With the help of the big air holes, the loss can be reduced to less than 0.1dB/km. So this kind of high numerical aperture fibers has the strong ability to collect light and the loss is very low.
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页数：6
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