Photon pair generation in hydrogenated amorphous silicon microring resonators

Lizzy Hemsley; Damien Bonneau; Jason Pelc; Ray Beasusoleil; Jeremy O'Brien; Mark Thompson

doi:10.1038/srep38908

Photon pair generation in hydrogenated amorphous silicon microring resonators

Lizzy Hemsley, Damien Bonneau, Jason Pelc, Ray Beasusoleil, Jeremy O'Brien, Mark Thompson

Research output: Contribution to journal › Article (Academic Journal) › peer-review

8 Citations (Scopus)

305 Downloads (Pure)

Abstract

We generate photon pairs in a-Si:H microrings using a CW pump, and find the Kerr coefficient of a-Si:H to be 3.73 ± 0.25 × 10⁻¹⁷m²/W. By measuring the Q factor with coupled power we find that the loss in the a-Si:H micro-rings scales linearly with power, and therefore cannot originate from two photon absorption. Theoretically comparing a-Si:H and c-Si micro-ring pair sources, we show that the high Kerr coefficient of this sample of a-Si:H is best utilized for microrings with Q factors below 10³, but that for higher Q factor devices the photon pair rate is greatly suppressed due to the first order loss.

Original language	English
Article number	28908
Number of pages	8
Journal	Scientific Reports
Volume	6
DOIs	https://doi.org/10.1038/srep38908
Publication status	Published - 20 Dec 2016

Keywords

Microresonators
Nonlinear optics
Quantum optics

Access to Document

10.1038/srep38908

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5 Finished

Programme Grant: Engineering Photonic Quantum Technologies.
Rarity, J. G., O'Brien, J. L., Thompson, M. G., Erven, C., Sahin, D., Marshall, G. D., Barreto, J., Jiang, P., Mccutcheon, W. D., Silverstone, J. W., Sinclair, G. F., Kling, L., Banerjee, A., Wang, J., Santagati, R., Borghi, M., Woodland, E. M., Mawdsley, H. C. M. & Faruque, I. I.
16/06/14 → 15/06/19
Project: Research, Parent
Quantum Optics for Integrated Photonic Technologies
Rarity, J. G.
16/06/14 → 15/06/19
Project: Research
Fabricating a photonic quantum computer.
O'Brien, J. L.
1/04/13 → 31/03/18
Project: Research

Cite this

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title = "Photon pair generation in hydrogenated amorphous silicon microring resonators",

abstract = "We generate photon pairs in a-Si:H microrings using a CW pump, and find the Kerr coefficient of a-Si:H to be 3.73 ± 0.25 × 10−17m2/W. By measuring the Q factor with coupled power we find that the loss in the a-Si:H micro-rings scales linearly with power, and therefore cannot originate from two photon absorption. Theoretically comparing a-Si:H and c-Si micro-ring pair sources, we show that the high Kerr coefficient of this sample of a-Si:H is best utilized for microrings with Q factors below 103, but that for higher Q factor devices the photon pair rate is greatly suppressed due to the first order loss.",

keywords = "Microresonators, Nonlinear optics, Quantum optics",

author = "Lizzy Hemsley and Damien Bonneau and Jason Pelc and Ray Beasusoleil and Jeremy O'Brien and Mark Thompson",

year = "2016",

month = dec,

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T1 - Photon pair generation in hydrogenated amorphous silicon microring resonators

AU - Hemsley, Lizzy

AU - Bonneau, Damien

AU - Pelc, Jason

AU - Beasusoleil, Ray

AU - O'Brien, Jeremy

AU - Thompson, Mark

PY - 2016/12/20

Y1 - 2016/12/20

N2 - We generate photon pairs in a-Si:H microrings using a CW pump, and find the Kerr coefficient of a-Si:H to be 3.73 ± 0.25 × 10−17m2/W. By measuring the Q factor with coupled power we find that the loss in the a-Si:H micro-rings scales linearly with power, and therefore cannot originate from two photon absorption. Theoretically comparing a-Si:H and c-Si micro-ring pair sources, we show that the high Kerr coefficient of this sample of a-Si:H is best utilized for microrings with Q factors below 103, but that for higher Q factor devices the photon pair rate is greatly suppressed due to the first order loss.

AB - We generate photon pairs in a-Si:H microrings using a CW pump, and find the Kerr coefficient of a-Si:H to be 3.73 ± 0.25 × 10−17m2/W. By measuring the Q factor with coupled power we find that the loss in the a-Si:H micro-rings scales linearly with power, and therefore cannot originate from two photon absorption. Theoretically comparing a-Si:H and c-Si micro-ring pair sources, we show that the high Kerr coefficient of this sample of a-Si:H is best utilized for microrings with Q factors below 103, but that for higher Q factor devices the photon pair rate is greatly suppressed due to the first order loss.

KW - Microresonators

KW - Nonlinear optics

KW - Quantum optics

U2 - 10.1038/srep38908

DO - 10.1038/srep38908

M3 - Article (Academic Journal)

C2 - 27996014

VL - 6

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 28908

ER -

Photon pair generation in hydrogenated amorphous silicon microring resonators

Abstract

Keywords

Access to Document

Programme Grant: Engineering Photonic Quantum Technologies.

Quantum Optics for Integrated Photonic Technologies

Fabricating a photonic quantum computer.

Cite this