Affiliation:
1. Sun Yat-Sen University
2. Jinan University
3. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)
Abstract
This Letter presents the first, to the best of our knowledge, thin-film lithium niobate–chalcogenide based microring acousto-optic modulator where an interdigital transducer and a chalcogenide strip waveguide are integrated on X-cut thin-film lithium niobate. The microring resonator exhibits a high loaded quality factor of 5 × 105. The developed hybrid acousto-optic modulator with an interaction length of 120 µm demonstrates an effective half-wave voltage of only 1.74 V, which corresponds to a voltage-length product of 0.02 V•cm. The performance of the acousto-optic modulator demonstrated on the unsuspended thin-film lithium niobate–chalcogenide waveguide platform is on par with that obtained from an acoustic cavity assisted homogeneous lithium niobate counterpart.
Funder
New Network of the Ministry of Science and Technology
National Natural Science Foundation of China
Science Foundation of Guangzhou City
China Postdoctoral Science Foundation
Subject
Atomic and Molecular Physics, and Optics
Cited by
3 articles.
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