Integrated Cascaded Bragg Gratings for On-Chip Optical Delay Lines

被引：14

作者：

Jiang, Lingjun ^{[1
]}

Huang, Zhaoran Rena ^{[1
]}

机构：

[1] Rensselaer Polytech Inst, Dept Elect Comp & Syst Engn, Troy, NY 12180 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2018年 / 30卷 / 05期

关键词：

Delay line; Bragg grating; integrated optics; slow light devices; WAVE-GUIDES; SLOW LIGHT; ARCHITECTURE;

D O I：

10.1109/LPT.2018.2801026

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：

We have demonstrated on-chip optical delay lines that consist of cascaded Bragg grating segments. Our results show that the band gap and the group index of cascaded gratings are very similar to that of a single grating segment, which means longer time delay can be achieved by cascading more grating segments. In our experiment, a maximum group index of 12.2 and a total time delay of 292 ps was achieved using a 7.2 mm-long delay line on Si chip.

引用

页码：499 / 502

页数：4

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