Saturable and Dispersive Parity-Time Symmetric Directional Coupler: A Transmission-Line Modelling Study

被引：0
|
作者：
Phang, Sendy [1 ]
Vukovic, Ana [1 ]
Benson, Trevor M. [1 ]
Creagh, Stephen [2 ]
Sewell, Phillip [1 ]
Gradoni, Gabriele [2 ]
机构：
[1] Univ Nottingham, George Green Inst Electromagnet Res, Nottingham NG7 2RD, England
[2] Univ Nottingham, Sch Math Sci, Nottingham NG7 2RD, England
来源：
2014 16TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) | 2014年
关键词：
parity-time waveguides; saturation model; TLM; GAIN/LOSS;
D O I：
暂无
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：
In this paper, numerical modelling of Parity-Time (PT) coupled waveguides is reported. The PT coupled waveguide structure consists of two coupled slab waveguides based on GaAs material with gain/loss material parameter models, including both dispersion and saturation. The numerical model used analyses the impact of dispersion and saturation on the eigenmode extracted by a curve fitting approach. The results show that the presence of saturation may prohibit the appearance of the threshold point above which the PT system becomes unstable.
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页数：6
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