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Continuously Tunable Thin-Film Lithium Niobate Optical Delay Line with 293 ps Tuning Range

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【作者】宋吕斌；郑勇；任嫄；南博洋；刘瑞雪；钟浩宗；李林；汪旻；陈锦明；伍荣波；程亚；

【Author】 Lv-Bin Song;Yong Zheng;Yuan Ren;Bo-Yang Nan;Rui-Xue Liu;Hao-Zong Zhong;Lin Li;Min Wang;Jin-Ming Chen;Rong-Bo Wu;Ya Cheng;State Key Laboratory of Precision Spectroscopy,East China Normal University;The Extreme Optoelectromechanics Laboratory (XXL),School of Physics and Electronic Science,East China Normal University;Hefei National Laboratory;Shanghai Research Center for Quantum Sciences;Collaborative Innovation Center of Extreme Optics,Shanxi University;

【通讯作者】陈锦明;伍荣波;程亚;

【机构】 State Key Laboratory of Precision Spectroscopy,East China Normal University； The Extreme Optoelectromechanics Laboratory (XXL),School of Physics and Electronic Science,East China Normal University； Hefei National Laboratory； Shanghai Research Center for Quantum Sciences； Collaborative Innovation Center of Extreme Optics,Shanxi University；

【摘要】 <正>We present a compact optical delay line(ODL) with wide-range continuous tunability on thin-film lithium niobate platform. The proposed device integrates an unbalanced Mach–Zehnder interferometer(MZI) architecture with dual tunable couplers, where each coupler comprises two 2 × 2 multimode interferometers and a MZI phase-tuning section. Experimental results demonstrate continuous delay tuning from 0 to 293 ps through synchronized control of coupling coe伍cients, corresponding to a 4 cm path difference between interferometer arms.更多还原

【关键词】 interferometer； tunable； coupler； tuning； synchronized； lithium； unbalanced；

【基金】 supported by the National Natural Science Foundation of China (Grant Nos. 12192251, 12334014, 12404378, 92480001, 12134001, 12174113, 12174107, 12474325, 12404379, and 12474378);the Innovation Program for Quantum Science and Technology (Grant No. 2021ZD0301403);Shanghai Municipal Science and Technology Major Project (Grant No. 2019SHZDZX01);Fundamental Research Funds for the Central Universities;the Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, East China Normal University (Grant No. 2023nmc005)

【文献出处】 Chinese Physics Letters ,中国物理快报(英文版) , 编辑部邮箱 ,2025年09期

【分类号】TN25
【下载频次】3

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