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Incorporation of erbium ions into thin-film lithium niobate integrated photonics

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5142631· OSTI ID:1803795
 [1];  [2];  [2];  [2];  [2];  [3];  [3];  [2]
  1. Yale Univ., New Haven, CT (United States); OSTI
  2. Yale Univ., New Haven, CT (United States)
  3. Montana State Univ., Bozeman, MT (United States)
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. In this work, we investigate the optical properties at 1.5 μm wavelengths of rare-earth ions (Er3+) 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.
Research Organization:
Yale Univ., New Haven, CT (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
SC0019406
OSTI ID:
1803795
Alternate ID(s):
OSTI ID: 1632960
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 15 Vol. 116; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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