Ultracompact quantum splitter of degenerate photon pairs
File(s)
Published version
OA Location
Author(s)
Type
Journal Article
Abstract
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.
Date Issued
2015-09-20
Date Acceptance
2015-08-02
Citation
Optica, 2015, 2 (9), pp.779-782
ISSN
2334-2536
Publisher
Optical Society of America
Start Page
779
End Page
782
Journal / Book Title
Optica
Volume
2
Issue
9
Copyright Statement
© 2015 Optical Society of America.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000364484800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Optics
CRYSTAL WAVE-GUIDE
TWIN PHOTONS
GENERATION
FIBER
LASER
CHIP
Publication Status
Published
Date Publish Online
2015-08-26