Beam steering via resonance detuning in coherently coupled vertical cavity laser arrays

被引：61
作者：
Johnson, Matthew T. [1 ]
Siriani, Dominic F. [1 ]
Tan, Meng Peun [1 ]
Choquette, Kent D. [1 ]
机构：
[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61820 USA
来源：
APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 20期
关键词：
PHASED-ARRAY; LOCKING;
D O I：
10.1063/1.4830432
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Coherently coupled vertical-cavity surface-emitting laser arrays offer unique advantages for nonmechanical beam steering applications. We have applied dynamic coupled mode theory to show that the observed temporal phase shift between vertical-cavity surface-emitting array elements is caused by the detuning of their resonant wavelengths. Hence, a complete theoretical connection between the differential current injection into array elements and the beam steering direction has been established. It is found to be a fundamentally unique beam-steering mechanism with distinct advantages in efficiency, compactness, speed, and phase-sensitivity to current. (C) 2013 AIP Publishing LLC.
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页数：4
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