An Integrated Photonic Platform for Rare-Earth Ions in Thin Film Lithium Niobate

Abstract

Rare-earth ion ensembles doped in single crystals are a promising materials system with widespread applications in optical signal processing, lasing, and quantum information processing. Incorporating rare-earth ions into integrated photonic devices could enable compact lasers and modulators, as well as on-chip optical quantum memories for classical and quantum optical applications. To this end, a thin film single crystalline wafer structure that is compatible with planar fabrication of integrated photonic devices would be highly desirable. However, incorporating rare-earth ions into a thin film form-factor while preserving their optical properties has proven challenging. We demonstrate an integrated photonic platform for rare-earth ions doped in a single crystalline thin film on insulator. The thin film is composed of lithium niobate doped with Tm3+. The ions in the thin film exhibit optical lifetimes identical to those measured in bulk crystals. We show narrow spectral holes in a thin film waveguide that require up to 2 orders of magnitude lower power to generate than previously reported bulk waveguides. Our results pave way for scalable on-chip lasers, optical signal processing devices, and integrated optical quantum memories.

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• Integrated photonics on thin-film lithium niobate
• On-chip erbium-doped lithium niobate waveguide amplifiers
• Controlling single rare earth ion emission in an electro-optical nanocavity
• Incorporation of erbium ions into thin-film lithium niobate integrated photonics
• Noiseless photonic non-reciprocity via optically-induced magnetization
• A Frequency-Multiplexed Coherent Electro-Optic Memory in Rare Earth Doped Nanoparticles
• A perspective on the pathway to a scalable quantum internet using rare-earth ions
• A Polarization Encoded Photon-to-Spin Interface
• Integrated Photonic Platforms for Quantum Technology: A Review
• Mid-infrared spectrally-uncorrelated biphotons generation from doped PPLN: a theoretical investigation
• Gigahertz-Bandwidth Optical Memory in Pr${}^{3+}$:Y${}_2$SiO${}_5$
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• An Integrated Bell-State Analyzer on a Thin Film Lithium Niobate Platform
• High-Speed Tunable Microcavities Coupled to Rare-Earth Quantum Emitters
• Erbium Quantum Memory Platform with Long Optical Coherence via Back-End of Line Deposition on Foundry-Fabricated Photonics