Fast-speed and low-power-consumption optical phased array based on lithium niobate waveguides
Wang Zhizhang,
Li Xueyun,
Ji Jitao,
Sun Zhenxing,
Sun Jiacheng,
Fang Bin,
Lu Jun,
Li Shaobo,
Ma Xiang,
Chen Xiangfei,
Zhu Shining,
Li Tao
Affiliations
Wang Zhizhang
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Li Xueyun
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Ji Jitao
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Sun Zhenxing
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Sun Jiacheng
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Fang Bin
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Lu Jun
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Li Shaobo
Optical Communication Research and Development Center, The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang, 050051, China
Ma Xiang
Optical Communication Research and Development Center, The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang, 050051, China
Chen Xiangfei
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Zhu Shining
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Li Tao
National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Jiangsu Key Laboratory of Artificial Functional Materials, College of Engineering and Applied Sciences, 12581Nanjing University, Nanjing, 210093, China
Fast scanning speed and low-power consumption are becoming progressively more and more important in realizing high-performance chiplet optical phased arrays (OPAs). Here, we successfully demonstrated integrated OPAs with multiple waveguides channels based on thin-film lithium niobate-on-insulator (LNOI) platform. Specifically, two lithium niobate (LN) OPA chips have been implemented with 32 and 48 channels LN waveguides, respectively, enabled by electro-optic modulations, which showcases the low power consumption (1.11 nJ/π) and fast operation speed (14.4 ns), showing obvious advantage of the LNOI platform over others. As results, we experimentally achieved a beam steering with a 62.2° × 8.8° field of view (FOV) and a beam divergence of 2.4° × 1.2° for 32 channels, and a FOV of 40° × 8.8° and a beam divergence of 0.33° × 1.8° for 48 channels. This work also demonstrates the feasibility of LNOI platform in scalable OPA chips.
