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Continuous Variable Quantum Encryption using Short Laser Pulses

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2005 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
NuCrypt LLC
1840 Oak Ave., Suite 212S Evanston, IL -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2005
Title: Continuous Variable Quantum Encryption using Short Laser Pulses
Agency / Branch: DOD / USAF
Contract: FA9550-05-C-0106
Award Amount: $99,967.00


The use of optical technology in both terrestrial and space-based wireless links has compelling advantages in terms of data rate, power consumption, weight, and size of the system. However, with the adoption of such technology, we have become heavily reliant on high data rate optical communication systems for our economy and national security. It is thus prudent to give careful consideration to the reliability, robustness to attack, and security of such data transmissions. Recently, a new method to protect the secrecy of optical transmissions against unauthorized eavesdropping has been proposed and demonstrated. This method, called AlphaEta, uses the quantum noise inherent in the light to create a highly secure physical layer encryption system which performs comparably, in terms of metrics such as ultimate propagation distance and sensitivity, to a conventional (unencrypted) system. We propose to augment an AlphaEta-like system by using a short pulse source to add the capability for spectral phase encoding and pulse-position modulation. These new properties can substantially increase the security of encryption, the sensitivity of the link, and the ability of such systems to be used for key generation.

Principal Investigator:

Gregory S. Kanter
Vice President, Product Development

Business Contact:

Prem Kumar
Small Business Information at Submission:

Nucrypt Llc
1801 Maple Avenue, Rm 6322 Evanston, IL 60201

EIN/Tax ID: 061695087
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
633 Clark Street
Evanston, IL 60208-1110
Contact: Susan G. Ross
Contact Phone: (847) 491-3003
RI Type: Nonprofit college or university