Visible-light optical phased array on a thin-film lithium niobate platform for high-speed beam steering

被引：0

作者：

Ye, Yongqi ^{[1
]}

Lian, Daixin ^{[1
]}

Chen, Zhansheng ^{[2
]}

Dong, Yantao ^{[3
]}

Bai, Gang ^{[3
]}

Li, Bei ^{[3
]}

Song, Yiwei ^{[3
]}

Zhao, Shi ^{[1
]}

Wu, Jiachen ^{[1
]}

Chen, Jingye ^{[1
]}

Dai, Daoxin ^{[1
]}

Shi, Yaocheng ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Opt Sci & Engn, Int Res Ctr Adv Photon, State Key Lab Extreme Photon & Instrumentat,Ctr Op, Hangzhou 310058, Peoples R China

[2] Shanghai Acad Spaceflight Technol Res, Shanghai 201100, Peoples R China

[3] Shanghai Radio Equipment Res Inst, Shanghai 201100, Peoples R China

来源：

OPTICS LETTERS | 2025年 / 50卷 / 09期

基金：

中国国家自然科学基金;

关键词：

PHOTONICS;

D O I：

10.1364/OL.559117

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a visible-light optical phased array (OPA) realized on a thin-film lithium niobate (TFLN) platform. The OPA chip integrates 32 channels and independently modulates the phase of each channel through an electro-optic phase shifter for the first time, to our knowledge, exhibiting a rapid response speed. The electro-optic rising edge response time is 12 ns, while the falling edge response time is 14 ns. Additionally, a combination of non-periodic arrays and a slab grating is employed to suppress the grating lobes of far-field beams, thereby achieving a large field of view (FOV) and a small beam divergence. A 32-channel OPA has been demonstrated, showing a FOV of 40 degrees and a beam divergence of 0.41 degrees in the phase tuning direction at 633 nm. (c) 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

引用

页码：3090 / 3093

页数：4

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