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Coherent Antiguided High Contrast Grating VCSEL Array

Yipeng Ji,Jonas Kapraun,Jianqiang Chen, Zhenglai Zhang,Shasha Li,Fangzhou Li, Haolin Li,Jiaxing Wang,ChihChiang Shen,Connie Chang-Hasnain

2022 28th International Semiconductor Laser Conference (ISLC)（2022）

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Abstract
We demonstrate coherent VCSEL arrays using a novel antiguided high contrast grating (HCG) structure that consists of two distinct HCG dimensions in one monolithic layer. Narrow single-lobed fundamental and double-lobed highest-order array mode emission are achieved with in- and out-of- phase coupling sections, respectively.
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coherent antiguided,high contrast grating
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