Slotless dispersion-flattened waveguides with more than five zero-dispersion wavelengths

被引：0
|
作者：
张家琅 [1 ]
张思远 [1 ]
姚俊娜 [1 ]
江新华 [1 ]
王安廷 [1 ]
詹其文 [2 ]
机构：
[1] Department of Optics and Optical Engineering,University of Science and Technology of China
[2] School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology
来源：
ChineseOpticsLetters | 2023年 / 21卷 / 10期
关键词：
D O I：
暂无
中图分类号：
TN252 [光波导];
学科分类号：
摘要：
We propose a new type of dispersion-flattened waveguide without a slot-assisted structure that can obtain an ultra-flat group velocity dispersion profile with five or six zero-dispersion wavelengths in the mid-infrared region.The dispersion profile becomes less sensitive to the waveguide dimensions due to the absence of the slot-assisted structure,making waveguide fabrication more friendly.The dispersion profile varies between-0.472 and 0.365 ps/(nm·km) over a 2665 nm bandwidth from 2885 nm to 5550 nm with a flatness of 3183.99 nm2·km/ps.Two different combinations of materials are demonstrated for dispersion flattening of the proposed waveguide structures.We also provide design guidance for the proposed waveguide structures with other combinations of materials.
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页码：59 / 63
页数：5
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