逐渐变细
光学
光子学
带宽(计算)
多路复用
插入损耗
计算机科学
材料科学
波分复用
电子工程
光电子学
物理
电信
波长
工程类
计算机图形学(图像)
作者
Lijie Hou,Linbo Yang,Zhiqun Yang,Yaping Liu,Zhanhua Huang,Lin Zhang
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-07-30
卷期号:49 (17): 4779-4779
摘要
Photonic lanterns (PLs) have been recently used in mode-division multiplexed systems with a low insertion loss, a low mode-dependent loss (MDL), and a wide bandwidth. However, the cross talk (XT) performance of the PLs requires further enhancement within a short taper length. In this Letter, a multi-stage cascaded scheme for short PLs is proposed to further improve the performance on losses and XT. The XT of the optimized 6-mode 3-stage PL is below −23.4 dB, while the total length is only 6 cm. To the best of our knowledge, this is the first quantitative optimization of a 3-stage tapered PL, resulting in a compact structure and excellent performance. Furthermore, we experimentally validate the feasibility of the 3-stage tapering process.
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