Study on the integrated waveguide optical delay line based on microring resonators

被引：0
|
作者：
Han X. [1 ]
Song H. [1 ]
Zhang J. [1 ]
Wu P. [1 ]
Teng J. [1 ]
Wang L. [1 ]
Zhao M. [1 ]
机构：
[1] Photonics Research Center, School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 03期
关键词：
Coupling coefficient; Integrated optical waveguide; Loss factor; Microring resonator; Optical delay line;
D O I：
10.3788/AOS20103003.0782
中图分类号：
学科分类号：
摘要：
The delay time response function of the waveguide microring resonator is deduced from its optical-field transmission function. The influence of microring waveguide loss on the delay time characteristics is analyzed and the result shows that the microring resonator-based optical delay line applied in the optically controlled phased array antenna system should be at over-coupled condition, which means that the coupling coefficient κ and the microring waveguide loss factor γ should satisfy the relation of κ>(1-γ). According to the criterion of delay time ripple guality factor ε, the method of optimized design of the microring resonator-based optical delay line is established, and the optimized structural parameters of cascaded four microring resonators for target delay time of 0.6 ns, bandwith of 2 GHz, and delay time ripple guality factor less than 1×10-3 ns2 are obtained.
引用
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页码：782 / 786
页数：4
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