Limitations by Group Delay Ripple on Optical Beam-forming With Chirped Fiber Grating

被引：13
|
作者：
Thai, Pham Quang [1 ]
Alphones, Arokiaswami [1 ]
Lim, Desmond R. [2 ]
机构：
[1] Nanyang Technol Univ, Singapore 639798, Singapore
[2] DSO Labs, Singapore 118230, Singapore
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 24期
关键词：
Chirped fiber grating; group delay ripple; optical phased array antennas;
D O I：
10.1109/JLT.2009.2032786
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：
This paper investigates the effect of group delay ripple on optical beam-formers using chirped fiber grating. Such optical beam-formers were promised to have many advantages over their electrical beam-forming counter-parts. However, mathematical analysis and simulation results have shown that the group delay ripple causes many drawbacks such as the limitation in operation frequency, RF signal bandwidth, and the number of elements. The most advantageous feature of optical beam-formers, which is squint-free operation for wideband, high frequency signals, is severely affected when chirped grating is used.
引用
收藏
页码：5619 / 5625
页数：7
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