期刊
APPLIED PHYSICS LETTERS
卷 116, 期 15, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.5142631
关键词
-
资金
- Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-SC0019406]
As an active material with favorable linear and nonlinear optical properties, thin-film lithium niobate has demonstrated its potential in integrated photonics. Integration with rare-earth ions, which are promising candidates for quantum memories and transducers, will enrich the system with new applications in quantum information processing. Here, we investigate the optical properties at 1.5 mu m wavelengths of rare-earth ions ( Er 3 +) implanted in thin-film lithium niobate waveguides and micro-ring resonators. Optical quality factors near a million after post-annealing show that ion implantation damage can be repaired. The transition linewidth and fluorescence lifetime of erbium ions are characterized. The ion-cavity coupling is observed through a Purcell enhanced fluorescence from which a Purcell factor of 3.8 +/- 0.5, compared with waveguide lifetime, is extracted. This platform is compatible with top-down lithography processes and leads to a scalable path for controlling spin-photon interfaces in photonic circuits.
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