2016
DOI: 10.1007/s00340-016-6325-z
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Towards a quantum interface between telecommunication and UV wavelengths: design and classical performance

Abstract: We propose and characterize a quantum interface between telecommunication wavelengths (1311 nm) and an Yb + -dipole transition (369.5 nm) based on a second order sum frequency process in a PPKTP waveguide. An external (internal) conversion efficiency above 5% (10%) is shown using classical bright light.

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Cited by 12 publications
(18 citation statements)
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“…For comparison, the attenuation in optical fibers [50], which makes direct transmission of UV light impossible, is shown (c). The concept of a cascaded SPDC/QFC process used for QFC to the UV is depicted in (d).proposal to use a two-stage cavity system [22], we have recently demonstrated a classical upconversion process in a rubidium doped periodically poled potassium titanyl phosphate (PPKTP) waveguide [23], which provides the basis for QFC.In this letter, we report on the QFC between infrared and UV for single photon states. More specifically we show QFC between the telecommunications O-band (around 1310 nm) and the wavelength of the Yb + transition at 369.5 nm, bridging an energy gap larger than arXiv:1610.03239v1 [quant-ph]…”
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confidence: 99%
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“…For comparison, the attenuation in optical fibers [50], which makes direct transmission of UV light impossible, is shown (c). The concept of a cascaded SPDC/QFC process used for QFC to the UV is depicted in (d).proposal to use a two-stage cavity system [22], we have recently demonstrated a classical upconversion process in a rubidium doped periodically poled potassium titanyl phosphate (PPKTP) waveguide [23], which provides the basis for QFC.In this letter, we report on the QFC between infrared and UV for single photon states. More specifically we show QFC between the telecommunications O-band (around 1310 nm) and the wavelength of the Yb + transition at 369.5 nm, bridging an energy gap larger than arXiv:1610.03239v1 [quant-ph]…”
mentioning
confidence: 99%
“…proposal to use a two-stage cavity system [22], we have recently demonstrated a classical upconversion process in a rubidium doped periodically poled potassium titanyl phosphate (PPKTP) waveguide [23], which provides the basis for QFC.…”
mentioning
confidence: 99%
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“…As a final note, the model presented in (9) requires the refractive indices of both the fundamental and second harmonic fields as the fundamental pump field is varied -the Sellmeier equation. For the titanium-indiffused lithium niobate waveguides investigated here these dispersion relations have been calculated using a finite element solver written in Python implementing the model described in [13].…”
Section: Fitting Proceduresmentioning
confidence: 99%