A large bandwidth photonic delay line using passive cascaded silicon-on-insulator microring resonators

This paper investigated the design and the characterization of a photonic delay line based on passive cascaded silicon-on-insulator （SOI） microrings. We considered the compromise of group delay, bandwidth and insertion loss. A 3-stage double channel side-coupled integrated spaced sequence of resonat...

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Bibliographic Details
Published in:Chinese physics B 2011-07, Vol.20 (7), p.216-222, Article 074208
Main Author: 胡应涛 肖希 李智勇 李运涛 樊中朝 韩伟华 俞育德 余金中
Format: Article
Language:English
Subjects:
Bandwidth
Channels
Delay lines
Drying
Electron beam lithography
Group delay
Photonics
Resonators
光子
带宽和
延迟线
微环
电子束光刻
硅绝缘体
级联
谐振器
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Summary:This paper investigated the design and the characterization of a photonic delay line based on passive cascaded silicon-on-insulator （SOI） microrings. We considered the compromise of group delay, bandwidth and insertion loss. A 3-stage double channel side-coupled integrated spaced sequence of resonator （SCISSOR） device was optimized by shifting the resonance of each microring and fabricated with electron beam lithography and dry etching. The group delay was measured to be 17 ps for non-return-to-zero signals at different bit rates and the bandwidth of 78 GHz was achieved. The experiment result agreed well with our simulation.
ISSN:1674-1056
2058-3834
DOI:10.1088/1674-1056/20/7/074208