铌酸锂
光子学
光子集成电路
光电子学
材料科学
波导管
光学滤波器
滤波器(信号处理)
绝缘体(电)
多模光纤
集成电路
光学
光纤
计算机科学
物理
计算机视觉
作者
Yujie Cheng,Lan‐Tian Feng,Jianghao He,Xinyu Song,Xu Han,Yu-Yang Ding,Cheng Wang,Guang‐Can Guo,Ming Zhang,Daoxin Dai,Xi‐Feng Ren
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-03-25
卷期号:49 (8): 1969-1969
摘要
Photonic integrated circuits have garnered significant attention and experienced rapid development in recent years. To provide fundamental building blocks for scalable optical classical and quantum information processing, one important direction is to develop cryogenic compatible photonic integrated devices. Here, we prepare one optical filter on a lithium-niobate-on-insulator (LNOI) platform based on a multimode waveguide grating and verify its availability at temperature from 295 to 7 K. We find that the integrated optical filter still shows good quality under cryogenic conditions, and the shift of the working wavelength at different temperatures is well explained by the index variation of the material. These results advance LNOI integrated optical devices in applications under cryogenic conditions.
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