Fast-speed and low-power-consumption optical phased array based on lithium niobate waveguides
| Autor: | Wang Zhizhang, Li Xueyun, Ji Jitao, Sun Zhenxing, Sun Jiacheng, Fang Bin, Lu Jun, Li Shaobo, Ma Xiang, Chen Xiangfei, Zhu Shining, Li Tao |
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| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Nanophotonics, Vol 13, Iss 13, Pp 2429-2436 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2192-8614 2024-0066 |
| DOI: | 10.1515/nanoph-2024-0066 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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