Telecom-band degenerate-frequency photon pair generation in silicon microring cavities

Guo, Yuan; Zhang, Wei; Dong, Shuai; Huang, Yidong; Peng, Jiangde

doi:10.1364/ol.39.002526

Cited by 25 publications

(39 citation statements)

References 20 publications

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“…3, when there is only one pump, the generated photons are at two different frequencies ωs and ω i , satisfying energy conversion ωs + ω i = 2ωp and phase matching ks + k i + 2 P − 2kp = 0; while when there are two pump waves at different frequencies ω p1 and ω p2 , the generated photons are frequency degenerate at ω s,i , also meeting the requirement of energy conversion 2ω s,i = ω p1 + ω p2 and phase matching 2k s,i + (P 1 + P 2 ) − k p1 − k p2 = 0 [25]. The former process can be used for heralded single-photon generation [26][27][28][29][30][31][32][33][34][35][36][37], and the latter can be used for indistinguishable photon-pair generation [38][39][40]. Phase matching is achieved by engineering the dispersion profile of the device through designing the device geometry and tailoring the waveguide core-cladding index contrast by the use of different cladding materials.…”

Section: Silicon Devices For Single Photon Generationmentioning

confidence: 99%

“…Very recently, several groups including us have reported the on-chip demonstrations based on silicon nanowires [17], PhC slow-light waveguides [39], and microrings [38,40]. In Refs.…”

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

“…In Refs. [17] and [38], two CW lasers were used as the pump and thus did not have the challenge of pulse synchronization. In the demonstration using PhCWs [39], we used a single intensity modulator to modulate two CW lasers to generate the required pulses and thus the two pump pulses were automatically synchronized; while in Ref.…”

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

“…[40], we spectrally sliced a broadband pulsed laser to get two pump pulses automatically synchronized. References [38,39] did not deterministically split the degenerate photons. In both [17] and [40], photons were deterministically split using timereversed two-photon HOM interference, as illustrated in Coincidence-to-accidental ratio 320 602 1,386 330 10 2 Fig.…”

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

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CMOS-compatible photonic devices for single-photon generation

2016

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Sources of single photons are one of the key building blocks for quantum photonic technologies such as quantum secure communication and powerful quantum computing. To bring the proof-of-principle demonstration of these technologies from the laboratory to the real world, complementary metal-oxide-semiconductor (CMOS)-compatible photonic chips are highly desirable for photon generation, manipulation, processing and even detection because of their compactness, scalability, robustness, and the potential for integration with electronics. In this paper, we review the development of photonic devices made from materials (e.g., silicon) and processes that are compatible with CMOS fabrication facilities for the generation of single photons.

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Section: Silicon Devices For Single Photon Generationmentioning

confidence: 99%

“…Very recently, several groups including us have reported the on-chip demonstrations based on silicon nanowires [17], PhC slow-light waveguides [39], and microrings [38,40]. In Refs.…”

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

Section: Frequency-degenerate Photon Pair Generationmentioning

confidence: 99%

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CMOS-compatible photonic devices for single-photon generation

2016

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“…27,31 These superior features together with mature nanofabrication technology make silicon an ideal platform for integrated quantum photonic application. [32][33][34][35][36][37][38][39][40][41][42][43][44] Here we propose and demonstrate an ultra-bright high-purity chip-scale photon source on the silicon-oninsulator (SOI) platform. By taking advantage of the dramatic cavity enhanced four-wave mixing in a high-quality silicon microdisk resonator, we are able to achieve a spectral brightness of 6.25 × 10 8 pair/s/mW 2 /GHz, orders of magnitude larger than other photon-pair sources, [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][32][33][34][35][36][37][38][39][40][41][42][43][44] and a strong quantum correlation of g (2) si (0) = (2.58 ± 0.16) × 10 4 which violates the classical Schwarz inequality by four orders of magnitude.…”

mentioning

confidence: 99%

High-purity single-mode photon source for integrated quantum photonics

Jiang

Zhang

et al. 2015

SPIE Proceedings

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Integrated quantum photonics relies critically on photon sources that have great purity, single-mode property, scalability, integrability and flexibility for both integrated quantum computing and long-haul quantum communication. Here we report a photon-pair/single-photon source that utilizes cavity-enhanced four-wave mixing in a high-Q silicon microresonator. The photon-pair source has a spectral brightness of 6.25 × 10 8 pairs/s/mW 2 /GHz and a quantum cross-correlation of g (2) si (0) = (2.58 ± 0.16) × 10 4 . The generated photons are single-mode, with a quantum self-correlation of 1.87 ± 0.05. The heralded single photons has conditional photon autocorrelation g(2) c as low as 0.0075 ± 0.0017 at 5.9 × 10 4 pair/s. Quantum photonic technology has found broad applications ranging from quantum communication, 1 quantum computing, 2 to quantum metrology. 3 Recent advances in integrated quantum photonics 4-6 show great promise for chip-scale quantum information processing with tremendous complexity. A bright, single-mode, high-purity, and integrated source of single photons and/or entangled photon pairs is essential for all these applications, 7-10 particularly for integrated quantum photonic circuits which rely critically on the purity, scalability, integrability, and flexibility of the photon source to support diverse quantum functionalities on a single chip.To date, nearly all photon-pair sources are based upon spontaneous parametric down conversion (SPDC) or four-wave mixing (FWM) in nonlinear optical crystals/waveguides. 8-10 Bulk crystals emit photon pairs into a multimode spatial profile, resulting in a fairly low photon generation/collection efficiency. 10-12 Significant efforts have been devoted in recent years to developing waveguide sources for single-mode emission. 13-17 However, the produced photon pairs generally exhibit a non-factorable spectrum which degrades considerably the quantumstate purity. 8 FWM in silica optical fibers/waveguides recently appears as a promising approach with a great flexibility of engineering photon spectrum, 18-25 which, unfortunately, suffers seriously from broadband Raman scattering of silica. 21,22,26 Silicon exhibits a strong Kerr nonlinearity for nonlinear optical interaction and a large refractive index enabling tight mode confinement, which has been explored intensively recently for a variety of applications. [27][28][29][30] In particular, single-crystalline silicon has a clean phonon spectrum with Brillouin-zone-center phonons of a welldefined frequency of 15.6 THz and a narrow linewidth of ∼105 GHz, which eliminates the deleterious broadband Raman noises. 27, 31 These superior features together with mature nanofabrication technology make silicon an ideal platform for integrated quantum photonic application. 32-44Here we propose and demonstrate an ultra-bright high-purity chip-scale photon source on the silicon-oninsulator (SOI) platform. By taking advantage of the dramatic cavity enhanced four-wave mixing in a high-quality silicon microdisk resonator, we are able to...

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Nonlinear Interactions and Non-classical Light

Strekalov

Leuchs

2019

Springer Series in Optical Sciences

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Telecom-band degenerate-frequency photon pair generation in silicon microring cavities

Cited by 25 publications

References 20 publications

CMOS-compatible photonic devices for single-photon generation

CMOS-compatible photonic devices for single-photon generation

High-purity single-mode photon source for integrated quantum photonics

Nonlinear Interactions and Non-classical Light

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