Fiber nonlinearity based entangled-photon sources

Award Information
Agency:
Department of Defense
Amount:
$99,996.00
Program:
STTR
Contract:
W911NF-07-C-0075
Solitcitation Year:
2007
Solicitation Number:
N/A
Branch:
Army
Award Year:
2007
Phase:
Phase I
Agency Tracking Number:
A074-020-0340
Solicitation Topic Code:
A07-T020
Small Business Information
NUCRYPT LLC
1801 Maple Avenue, Rm 6322, Evanston, IL, 60201
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
133619234
Principal Investigator
 Gregory Kanter
 Vice President, Product Development
 (847) 491-5713
 kanterg@nucrypt.net
Business Contact
 Prem Kumar
Title: Manager/CEO
Phone: (847) 275-8996
Email: kumarp@nucrypt.net
Research Institution
 NORTHWESTERN UNIV.
 Susan G Ross
 633 Clark Street
Evanston, IL, 60208-1110
 (847) 491-3003
 Nonprofit college or university
Abstract
Entangled photons have special properties arising from their quantum nature and have been used for scientific purposes such as demonstrating quantum teleportation. Several fascinating applications for entangled photons have been proposed including quantum metrology, computation, communication, and key generation. However, generating entangled light is currently an experiment in itself, thereby hampering development of these promising applications. Most entangled light generation schemes use nonlinear crystals. Recently researchers associated with NuCrypt have pioneered entangled photon sources that exploit the nonlinearity inherent in standard optical fiber. This is beneficial in many regards including excellent modal purity and easy low-loss fiber interconnects. In this STTR we plan to leverage such designs to build a flexible entangled photon source. Our source will generate photons in the 1310nm spectral window allowing them to co-propagate with traditional 1550nm optical communication signals without deleterious cross-talk. We will investigate various fiber types and configurations in an effort to reduce the harmful Raman scattering, leading to increased entanglement quality or eliminating the need for fiber cooling. We will also investigate frequency conversion directly in the fiber to allow for high quality single-photon detection via Silicon detectors, which are much better than other types of detectors available for 1310/1550nm photon counting.

* information listed above is at the time of submission.

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