Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip

Sarrafi, Peyman; Zhu, Eric Y.; Dolgaleva, Ksenia; Holmes, B. M.; Hutchings, D. C.; Aitchison, J. S.; Qian, Li

doi:10.1063/1.4851095

Cited by 33 publications

(18 citation statements)

References 20 publications

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“…Semiconductors provide an interesting integrated optics platform for preparing photon pairs via nonlinear optical effects, such as parametric down-conversion (PDC) [7][8][9] . By utilizing Bragg-reflection waveguides (BRWs) made of Al x Ga 1−x As with x being the aluminum concentration, we can benefit from their large effective second-order optical nonlinearity 10 and the flexibility in their design 11 .…”

Section: Introductionmentioning

confidence: 99%

Invited Article: Time-bin entangled photon pairs from Bragg-reflection waveguides

et al. 2018

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Semiconductor Bragg-reflection waveguides are well-established sources of correlated photon pairs as well as promising candidates for building up integrated quantum optics devices. Here, we use such a source with optimized non-linearity for preparing time-bin entangled photons in the telecommunication wavelength range. By taking advantage of pulsed state preparation and efficient free-running single-photon detection, we drive our source at low pump powers, which results in a strong photon-pair correlation. The tomographic reconstruction of the state's density matrix reveals that our source exhibits a high degree of entanglement. We extract a concurrence of 88.9 ± 1.8% and a fidelity of 94.2 ± 0.9% with respect to a Bell state.

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Section: Introductionmentioning

confidence: 99%

Invited Article: Time-bin entangled photon pairs from Bragg-reflection waveguides

et al. 2018

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“…Comparison with other AlGaAs sources and silicon-based sources.This work AlGaAs waveguide (wg.) χ(3) 177 2.9 × 10 −3 5.4 Ref [7]. c…”

mentioning

confidence: 99%

Correlated photon pair generation in AlGaAs nanowaveguides via spontaneous four-wave mixing

Kultavewuti¹,

Zhu²,

Qian³

et al. 2016

Opt. Express

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Abstract:We demonstrate a source of correlated photon pairs which will have applications in future integrated quantum photonic circuits. The source utilizes spontaneous four-wave mixing (SFWM) in a dispersion-engineered nanowaveguide made of AlGaAs, which has merits of negligible two-photon absorption and low spontaneous Raman scattering (SpRS). We observe a coincidence-to-accidental (CAR) ratio up to 177, mainly limited by propagation losses. Experimental results agree well with theoretical predictions of the SFWM photon pair generation and the SpRS noise photon generation. We also study the effects from the SpRS, propagation losses, and waveguide lengths on the quality of our source.

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“…4(c)). III-V semiconductor photon pair sources based on SPDC have been developed in channel waveguides demonstrating correlated photon pair generation 223 and frequencybin entanglement 195 with integrated super-lattices for quasi phase-matching. Other works using BRW structures for phase-matching are discussed in the following subsection 'other waveguide structures'.…”

Section: Channel Waveguidesmentioning

confidence: 99%

Integrated photon-pair sources with nonlinear optics

Wang¹,

Jöns

Sun

2021

Applied Physics Reviews

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Assisted by the rapid development of photonic integrated circuits, scalable and versatile chip-based quantum light sources with nonlinear optics are increasingly tangible for real-world applications. In this review, we introduce the basic concepts behind parametric photon pair sources and discuss the current state-of-the-art photon pair generation in detail bur also highlight future perspectives in hybrid integration, novel waveguide structures and on-chip multiplexing. The advances in near-deterministic integrated photon pair sources are deemed to pave the way for the realization of large-scale quantum photonic integrated circuits for applications including quantum telecommunication, quantum sensing, quantum metrology and photonic quantum computing.

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Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip

Cited by 33 publications

References 20 publications

Invited Article: Time-bin entangled photon pairs from Bragg-reflection waveguides

Invited Article: Time-bin entangled photon pairs from Bragg-reflection waveguides

Correlated photon pair generation in AlGaAs nanowaveguides via spontaneous four-wave mixing

Integrated photon-pair sources with nonlinear optics

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