Monolithic integration of single photon sources via evanescent coupling of tapered InP nanowires to SiN waveguides

Abstract

We demonstrate a method to monolithically integrate nanowire-based quantum dot single photon sources on-chip using evanescent coupling. By deterministically placing an appropriately tapered III-V nanowire waveguide, containing a single quantum dot, on top of a silicon-based ridge waveguide, the quantum dot emission can be transferred to the ridge waveguide with calculated efficiencies close to 100%. As the evanescent coupling is bidirectional, the source can be optically pumped in both free-space and through the ridge waveguide. The latter onfiguration provides a self-contained, all-fiber, single photon source suitable as a plug-and-play solution for applications requiring bright, on-demand single photons. Using InAsP quantum dots embedded in InP nanowire waveguides, we demonstrate coupling efficiencies to a SiN ridge waveguide of 74% with a single photon purity of 97%.

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Cited by in corpus (16)

• Hybrid integration methods for on-chip quantum photonics
• Quantum dots for photonic quantum information technology
• Integrated Single Photon Emitters
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics
• Position-controlled Telecom Single Photon Emitters Operating at Elevated Temperatures
• Quantum Trajectory Theory and Simulations of Nonlinear Spectra and Multi-Photon Effects in Waveguide-QED Systems with a Time-Delayed Coherent Feedback
• Dynamic strain modulation of a nanowire quantum dot compatible with a thin-film lithium niobate photonic platform
• Light-hole states in a strained quantum dot: numerical calculation and phenomenological models
• Improving On-Demand Single Photon Source Coherence and Indistinguishability Through a Time-Delayed Coherent Feedback
• Suspended Spot-Size Converters for Scalable Single-Photon Devices
• On-demand generation of entangled photons pairs in the telecom O-band from nanowire quantum dots
• Quantitative analysis of the blue-green single-photon emission from a quantum dot in a thick tapered nanowire
• Probing dressed states and quantum nonlinearities in a strongly coupled three-qubit waveguide system under optical pumping
• Density-controlled growth of vertical InP nanowires on Si(111) substrates
• Brightness and purity of a room-temperature single-photon source in the blue-green range
• Indistinguishable Single Photons from Nanowire Quantum Dots in the Telecom O-Band