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2 August 2024 Development towards telecom C-band single photon emission from deterministically positioned nanowire quantum dot sources
Andrew N. Wakileh, Lingxi Yu, Doga Dokuz, Sofiane Haffouz, Xiaohua Wu, Jean Lapointe, David B. Northeast, Robin L. Williams, Nir Rotenberg, Philip Poole, Dan Dalacu
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Proceedings Volume PC13106, Photonics for Quantum 2024; PC131060N (2024) https://doi.org/10.1117/12.3027147
Event: Photonics for Quantum, 2024, Waterloo, Ontario, Canada
Abstract
The development of photonic-based quantum information technologies depends on the availability of devices that consistently, and with high efficiency, deterministically emit identical single photons. Furthermore, a key requirement for the implementation of fiber-based quantum secured communication protocols demands that these sources be compatible with optical fiber networks operating in the low-loss telecom C-band (λ ~ 1550 nm). Semiconductor quantum dot emitters offer on-demand operation at high rates and can be incorporated into photonic structures that allow for high efficiency collection. Through composition engineering of InAs_(x)P_(1-x) dot-in-a-rod (DROD) nanowire quantum dot structures we have previously demonstrated single photon emission from wavelengths of up to the telecom O-band. Here we show how the DROD structure can be modified to shift emission wavelength to the telecom C-band with single-photon purities of g(2)(0) = 0.062. Through further optimization of these structures, we aim to dramatically increase source brightness with the long-term goal of developing scalable and efficient C-band emitting site-selected single-photon sources.
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Andrew N. Wakileh, Lingxi Yu, Doga Dokuz, Sofiane Haffouz, Xiaohua Wu, Jean Lapointe, David B. Northeast, Robin L. Williams, Nir Rotenberg, Philip Poole, and Dan Dalacu "Development towards telecom C-band single photon emission from deterministically positioned nanowire quantum dot sources", Proc. SPIE PC13106, Photonics for Quantum 2024, PC131060N (2 August 2024); https://doi.org/10.1117/12.3027147
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KEYWORDS
Quantum dot emission
Quantum dots
Emission wavelengths
Nanowires
Quantum efficiency
Semiconductor quantum dots
Quantum operations
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