Parity-time symmetry in coherently coupled vertical cavity laser arrays

被引：104
|
作者：
Gao, Zihe [1 ]
Fryslie, Stewart T. M. [1 ]
Thompson, Bradley J. [1 ]
Carney, P. Scott [1 ]
Choquette, Kent D. [1 ]
机构：
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
来源：
OPTICA | 2017年 / 4卷 / 03期
基金：
美国国家科学基金会;
关键词：
PHASE-LOCKED ARRAYS; LOCKING;
D O I：
10.1364/OPTICA.4.000323
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report parity-time (PT) symmetry breaking in electrically injected, coherently coupled, vertical cavity surface emitting laser arrays. We predict beam steering, mode evolution, and mode hopping as consequences of the non-Hermiticity of the array, analyzed by the temporal coupled-mode theory with both an asymmetric gain distribution and local frequency detuning. We present experimental confirmations of the predicted mode evolution, mode hopping, and PT symmetry breaking with quantitative agreement with the theory. (C) 2017 Optical Society of America
引用
收藏
页码：323 / 329
页数：7
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