Theory of cavity-enhanced spontaneous four wave mixing

Garay-Palmett, Karina; Jerónimo-Moreno, Yasser; U’Ren, Alfred B.

doi:10.1088/1054-660x/23/1/015201

Cited by 28 publications

(16 citation statements)

References 38 publications

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“…These devices are typically based on atomic transitions that have linewidths on the order of 10 to 100 MHz [13]. Exploiting optical cavities for the generation of photon pairs allows to reduce the photon pair bandwidth [16,17], eventually matching the quantum memories requirements without the need of narrowband filtering, which typically results in a reduced pair production rate. However, many of the sources based on integrated resonators have so far failed to achieve the narrow linewidths compatible with quantum memories because of their relatively modest Qfactors [6,8,18,19].…”

Section: Introductionmentioning

confidence: 99%

Integrated frequency comb source of heralded single photons

Reimer

Caspani

Clerici³

et al. 2014

Opt. Express

262

211

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Abstract:We report an integrated photon pair source based on a CMOScompatible microring resonator that generates multiple, simultaneous, and independent photon pairs at different wavelengths in a frequency comb compatible with fiber communication wavelength division multiplexing channels (200 GHz channel separation) and with a linewidth that is compatible with quantum memories (110 MHz). It operates in a self-locked pump configuration, avoiding the need for active stabilization, making it extremely robust even at very low power levels. References and links

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Section: Introductionmentioning

confidence: 99%

Integrated frequency comb source of heralded single photons

Reimer

Caspani

Clerici³

et al. 2014

Opt. Express

262

211

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“…If these sets of functions are non-overlapping, i.e if for any given j the spectral region for which S j (ω) is non-zero does not overlap similarly-defined regions for other j s (and likewise for functions {I j (ω)}), it follows that each set of functions must be orthogonal, and then each {S j (ω), I j (ω)} constitutes a Schmidt mode pair for the overall two-photon state, given as the coherent sum of the various phasematched processes. Note that spectrally non-overlapping Schmidt mode pairs may alternatively be obtained through cavity-enhanced SFWM [22][23][24][25] (or SPDC 26,27 ), for a sufficiently small pump bandwidth.…”

Section: Theory Of Intermodal Sfwmmentioning

confidence: 99%

Fiber-based photon-pair source capable of hybrid entanglement in frequency and transverse mode, controllably scalable to higher dimensions

Cruz-Delgado

Alarcón

Ortiz-Ricardo

et al. 2016

Sci Rep

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We have designed and implemented a photon-pair source, based on the spontaneous four wave mixing (SFWM) process in a few-mode fiber, in a geometry which permits multiple, simultaneous SFWM processes, each associated with a distinct combination of transverse modes for the four participating waves. In our source: i) each process is group-velocity-matched so that it is, by design, nearly-factorable, and ii) the spectral separation between neighboring processes is greater than the marginal spectral width of each process. Consequently, there is a direct correspondence between the joint amplitude of each process and each of the Schmidt mode pairs of the overall two-photon state. Our approach permits hybrid entanglement in discrete frequency and in transverse mode, whereby control of the number of supported fiber transverse modes allows scalability to higher dimensions while spectral filtering may be used for straightforward Schmidt mode discrimination.

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“…In this section we develop a simple model -inspired by the pictorial representation in [40] -that captures the main consequences of this effect.…”

Section: Appendix: Heralding Efficiency Vis-a-vis Photon Bandwidthmentioning

confidence: 99%

Entanglement swapping with quantum-memory-compatible photons

et al. 2015

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We report entanglement swapping with time-bin entangled photon pairs, each constituted of a 795 nm photon and a 1533 nm photon, that are created via spontaneous parametric down conversion in a non-linear crystal. After projecting the two 1533 nm photons onto a Bell state, entanglement between the two 795 nm photons is verified by means of quantum state tomography. As an important feature, the wavelength and bandwidth of the 795 nm photons is compatible with Tm:LiNbO3-based quantum memories, making our experiment an important step towards the realization of a quantum repeater.

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Theory of cavity-enhanced spontaneous four wave mixing

Cited by 28 publications

References 38 publications

Integrated frequency comb source of heralded single photons

Integrated frequency comb source of heralded single photons

Fiber-based photon-pair source capable of hybrid entanglement in frequency and transverse mode, controllably scalable to higher dimensions

Entanglement swapping with quantum-memory-compatible photons

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