Mitigating photorefractive effect in thin-film lithium niobate microring resonators
Abstract
Thin-film lithium niobate is an attractive integrated photonics platform due to its low optical loss and favorable optical nonlinear and electro-optic properties. However, in applications such as second harmonic generation, frequency comb generation, and microwave-to-optics conversion, the device performance is strongly impeded by the photorefractive effect inherent in thin-film lithium niobate. In this paper, we show that the dielectric cladding on a lithium niobate microring resonator has a significant influence on the photorefractive effect. By removing the dielectric cladding layer, the photorefractive effect in lithium niobate ring resonators can be effectively mitigated. Our work presents a reliable approach to control the photorefractive effect on thin-film lithium niobate and will further advance the performance of integrated classical and quantum photonic devices based on thin-film lithium niobate.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 04, 2021
- Source ID
- 10.1364/oe.418877
Entities
People
- Ayed Al Sayem
- Hong X Tang
- Joshua B Surya
- Juanjuan Lu
- Mohan Shen
- Yuntao Xu
Organizations
- Army Research Office
- National Science Foundation
- United States Department of Energy
- Yale University