Author Affiliations
Abstract
1 54th Institute, China Electronics Technology Group Corporation, Shijiazhuang 050011, China
2 Hebei Key Laboratory of Photonic Information Technology and Application (PITA), Shijiazhuang 050011, China
3 Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
We propose and demonstrate an integrated microwave photonic sideband selector based on the thin-film lithium niobate (TFLN) platform by integrating an electro-optic Mach–Zehnder modulator (MZM) and a thermo-optic tunable flat-top microring filter. The sideband selector has two functions: electro-optic modulation of wideband RF signal and sideband selection. The microwave photonic sideband selector supports processing RF signals up to 40 GHz, with undesired sidebands effectively suppressed by more than 25 dB. The demonstrated device shows great potential for TFLN integrated technology in microwave photonic applications, such as mixing and frequency measurement.
lithium niobate microwave photonics sideband selector Chinese Optics Letters
2024, 22(3): 031304
1 中国科学院半导体研究所集成光电子学国家重点实验室，北京 100083
2 中国科学院大学电子电气与通信工程学院，北京 100049
3 中国科学院大学材料科学与光电技术学院，北京 100049
4 中国电子科技集团公司第五十四研究所光通信研发中心，河北 石家庄 050081
基于微环谐振腔和光纤布拉格光栅，利用相位-强度调制，实现了三种滤波响应可切换微波光子滤波器。通过改变光纤布拉格光栅反射谱、微环谐振腔陷波和光载波三者之间的相对波长，微波光子滤波器的滤波响应可以在带通、平顶带通和高通之间切换。制备了欧拉微环并搭建了微波光子滤波器系统，实现了上述三种响应。三种响应的带宽均具有一定的调谐能力，其调谐范围分别为5.56~7.68 GHz、6.23~11.92 GHz和5.83~10.86 GHz。三种响应下微环的插入损耗均小于10 dB。可切换的滤波响应使该微波光子滤波器具有更高的灵活性，在频率测量、杂散抑制等场景中具有广阔的应用空间。
集成光学 微波光子滤波器 微环谐振腔 光纤布拉格光栅 响应可切换 激光与光电子学进展
2023, 60(9): 0913001
