Imperial College London
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Dr Alex S. Clark

Faculty of Natural Sciences, Department of Physics

Academic Visitor
 
 
 
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Contact

 

alex.clark Website

 
 
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Location

 

Blackett 211Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{He:2015:10.1364/OPTICA.2.000779,
author = {He, J and Bell, BA and Casas-Bedoya, A and Zhang, Y and Clark, AS and Xiong, C and Eggleton, BJ},
doi = {10.1364/OPTICA.2.000779},
journal = {Optica},
pages = {779--782},
title = {Ultracompact quantum splitter of degenerate photon pairs},
url = {http://dx.doi.org/10.1364/OPTICA.2.000779},
volume = {2},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Integrated sources of indistinguishable photons have attracted a lot of attention because of their applications in quantum communication and optical quantum computing. Here, we demonstrate an ultracompact quantum splitter for degenerate photon pairs based on a monolithic silicon chip. It incorporates a Sagnac loop and a microring resonator with a total footprint of 0.011  mm2, generating and deterministically splitting indistinguishable photon pairs using two-photon interference. The ring resonator provides an enhanced photon generation rate, and the Sagnac loop ensures the photons travel through equal path lengths and interfere with the correct phase to enable the reversed Hong–Ou–Mandel (HOM) effect to take place. In the experiment, we observed a HOM dip visibility of 94.5±3.3%, indicating the generated photons are in a suitable state for further integration with other components for quantum applications, such as controlled-NOT gates.
AU  - He,J
AU  - Bell,BA
AU  - Casas-Bedoya,A
AU  - Zhang,Y
AU  - Clark,AS
AU  - Xiong,C
AU  - Eggleton,BJ
DO  - 10.1364/OPTICA.2.000779
EP  - 782
PY  - 2015///
SN  - 2334-2536
SP  - 779
TI  - Ultracompact quantum splitter of degenerate photon pairs
T2  - Optica
UR  - http://dx.doi.org/10.1364/OPTICA.2.000779
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000364484800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/60841
VL  - 2
ER  -
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