Connection loss reduction in variable optical delay line by using graded-index type photonic crystal fiber

被引：4
|
作者：
Higuchi, Keiichi [1 ]
Yokota, Hirohisa [1 ]
Yoneya, Kazuki [1 ]
Imai, Yoh [1 ]
机构：
[1] Ibaraki Univ, Grad Sch Sci & Engn, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 3168511, Japan
来源：
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING | 2018年 / 13卷 / 05期
基金：
日本学术振兴会;
关键词：
graded-index type photonic crystal fiber; low loss butt-joint connection; periodic beam propagation; optical fiber device;
D O I：
10.1002/tee.22624
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：
A low-loss butt-joint connection method between photonic crystal fibers (PCFs) by using a graded-index type photonic crystal fiber (GI-PCF) is proposed. The GI-PCF, in which the diameter of the air holes is chosen in a parabolic distribution in the effective refractive index, is analyzed numerically by a beam propagation method. It is found that the mode extent in the GI-PCF varies periodically along the propagation direction when the LP01 mode of the PCF is launched into the GI-PCF. This characteristic is successfully applied to reduce the butt-joint connection loss between the PCFs by 1.6 dB with a 20.6-mm GI-PCF under 200 mu m air gap. (c) 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.
引用
收藏
页码：742 / 747
页数：6
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