Two-Photon Interference Using Background-Free Quantum Frequency Conversion of Single Photons Emitted by an InAs Quantum Dot

Ateş, Serkan; Agha, Imad; Gulinatti, Angelo; Rech, Ivan; Rakher, Matthew T.; Badolato, Antonio; Srinivasan, Kartik

doi:10.1103/physrevlett.109.147405

Cited by 137 publications

(107 citation statements)

References 33 publications

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“…We focus on classical input pulses with a mono-exponential decay in the nanosecond regime, mimicking the emission of the aforementioned single quantum emitters. We demonstrate spectral broadening of such waveforms using a variation of a setup previously used in nearly background-free quantum frequency conversion of single photon from a semiconductor quantum dot [11]. Our results complement recent work on spectral compression of single photons through nonlinear wave mixing [12].…”

Section: Introductionsupporting

confidence: 74%

“…The wall-to-wall conversion efficiency (which in-cludes input and output coupling losses) is estimated to be 40 % ± 1 % [17] with a signal-to-noise ratio > 100 : 1, as described in Ref. 11, where quantum frequency conversion with a true single photon source was performed, establishing that the measurements shown below can be directly extended to the single photon regime.…”

Section: Methodsmentioning

confidence: 99%

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Spectral broadening and shaping of nanosecond pulses: toward shaping of single photons from quantum emitters

et al. 2014

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We experimentally demonstrate spectral broadening and shaping of exponentially-decaying nanosecond pulses via nonlinear mixing with a phase-modulated pump in a periodically-poled lithium niobate (PPLN) waveguide. A strong, 1550 nm pulse is imprinted with a temporal phase and used to upconvert a weak 980 nm pulse to 600 nm while simultaneously broadening the spectrum to that of a Lorentzian pulse up to 10 times shorter. While the current experimental demonstration is for spectral shaping, we also provide a numerical study showing the feasibility of subsequent spectral phase correction to achieve temporal compression and re-shaping of a 1 ns mono-exponentially decaying pulse to a 250 ps Lorentzian, which would constitute a complete spectro-temporal waveform shaping protocol. This method, which uses quantum frequency conversion in PPLN with > 100 : 1 signal-to-noise ratio, is compatible with single photon states of light. IntroductionHybrid quantum networks that combine different physical systems are one approach to achieving the varied functions needed in photonic quantum information processing systems [1]. Unfortunately, the disparate components of such a quantum network may not share the same spectro-temporal properties, leading to an intrinsic incompatibility that can only be overcome via an "adaptation interface." For example, single photon sources based on single quantum emitters like InAs quantum dots [2], nitrogen vacancy centers in diamond [3], and neutral alkali atoms [4] exhibit desirable features such as on-demand generation with the potential for high single photon purity. To interface the emission wavelengths below 1000 nm with the low-loss telecommunications band, quantum frequency conversion interfaces [5,6] have been proposed and developed, both in bulk and on-chip geometries. However, wavelength incompatibility is not the only challenge that needs to be overcome. While the temporal waveform of such two-level quantum emitters is typically a few nanosecond mono-exponential decay, telecommunications networks are better suited to Gaussian and square pulses that are much shorter in duration. Moreover, the bandwidth of quantum memories that are an integral part of the quantum repeater protocol may be either broader or narrower than the bandwidth of the photons [7]. Spectro-temporal shaping of single photons, while preserving their quantum nature, is thus a vital tool for hybrid quantum networks [8,9].

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Section: Introductionsupporting

confidence: 74%

Section: Methodsmentioning

confidence: 99%

Spectral broadening and shaping of nanosecond pulses: toward shaping of single photons from quantum emitters

et al. 2014

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“…Eqs. (283) - (285) are simulated below using the typical parameters of the two photon interference experiments (Ates et al, 2012;Bernien et al, 2012;Coolen et al, 2008;Lettow et al, 2010;Patel et al, 2010;Sanaka et al, 2012;Santori et al, 2002;Sipahigil et al, 2012;Trebbia et al, 2010;Wolters et al, 2013). Photon indistinguishability depends on the molecular transition frequencies.…”

Section: Time-and-frequency Gated Pccmentioning

confidence: 99%

Nonlinear optical signals and spectroscopy with quantum light

2016

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Conventional nonlinear spectroscopy uses classical light to detect matter properties through the variation of its response with frequencies or time delays. Quantum light opens up new avenues for spectroscopy by utilizing parameters of the quantum state of light as novel control knobs and through the variation of photon statistics by coupling to matter. We present an intuitive diagrammatic approach for calculating ultrafast spectroscopy signals induced by quantum light, focusing on applications involving entangled photons with nonclassical bandwidth properties -known as "time-energy entanglement". Nonlinear optical signals induced by quantized light fields are expressed using time ordered multipoint correlation functions of superoperators in the joint field plus matter phase space. These are distinct from Glauber's photon counting formalism which use normally ordered products of ordinary operators in the field space. One notable advantage for spectroscopy applications is that entangled photon pairs are not subjected to the classical Fourier limitations on the joint temporal and spectral resolution. After a brief survey of properties of entangled photon pairs relevant to their spectroscopic applications, different optical signals, and photon counting setups are discussed and illustrated for simple multi-level model systems.

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“…In future work, the use of two frequency converters with two pump wavelengths would enable high-fidelity telecom-band interference of photons from quantum dots with different transition frequencies, without resort o temperature or electric-field tuning of the QD transition frequencies [32,34]. By tuning the pump frequency, a tunable telecom-band single-photon source is created, which has potential uses in wavelength-division multiplexed quantum communications and in quantum metrology.…”

Section: Discussionmentioning

confidence: 99%

Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel

Pelc¹,

Yu²,

Greve³

et al. 2012

Opt. Express

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Abstract:Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We implement a downconversion quantum interface, where the single photons emitted from a semiconductor quantum dot at 910 nm are downconverted to 1560 nm using a fiber-coupled periodically poled lithium niobate waveguide and a 2.2-µm pulsed pump laser. The single-photon character of the quantum dot emission is preserved during the downconversion process: we measure a cross-correlation g (2) (τ = 0) = 0.17 using resonant excitation of the quantum dot. We show that the downconversion interface is fully compatible with coherent optical control of the quantum dot electron spin through the observation of Rabi oscillations in the downconverted photon counts. These results represent a critical step towards a long-distance hybrid quantum network in which subsystems operating at different wavelengths are connected through quantum frequency conversion devices and 1.5-µm quantum channels. References and links1. H. J. Kimble, "The quantum internet," Nature (London) 453, 1023-1030 (2008 Yamamoto, "Quantum-dot spin-photon entanglement via frequency downconversion to telecom wavelength," Nature (London) 491, 421-425 (2012). 34. H. Takesue, "Erasing distinguishability using quantum frequency up-conversion," Phys. Rev. Lett. 101, 173901-4 (2008).

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Two-Photon Interference Using Background-Free Quantum Frequency Conversion of Single Photons Emitted by an InAs Quantum Dot

Cited by 137 publications

References 33 publications

Spectral broadening and shaping of nanosecond pulses: toward shaping of single photons from quantum emitters

Spectral broadening and shaping of nanosecond pulses: toward shaping of single photons from quantum emitters

Nonlinear optical signals and spectroscopy with quantum light

Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel

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