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Enabling Technologies for Free Space Quantum Cryptography

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
NuCrypt LLC
1840 Oak Ave., Suite 212S Evanston, IL 60201-3697
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2005
Title: Enabling Technologies for Free Space Quantum Cryptography
Agency / Branch: DOD / USAF
Contract: FA8750-05-C-0094
Award Amount: $949,416.00


In this SBIR project we aim to exploit a new invention in quantum cryptography to secure free-space optical links and networks. Unlike the techniques based on single-photon states that are limited to low bit rates and short distances, our approach is based on coherent states emitted by ordinary lasers, permitting scaling to high speeds and deployment over realistic distances. We have already demonstrated single channel speeds of 622 Mb/s over 550 km distance in optical fiber. We aim to scale this technology to 2.5 Gb/s over free-space distances spanning LEO and MEO spacecrafts and ground networks. We believe this technology is also applicable to encrypting data over emerging commercial free-space-optics (FSO) networks. Specifically, in Phase II we will perform the following tasks: 1) Improve security with expanded electronics in the 622 Mb/s system. 2) Improve performance for up to 1 km free-space reach. 3) Add protocols and control circuitry to allow for fully automated operation. 4) Implement an on-demand key loading feature. 5) Build and characterize a working prototype suitable for trials in a deployed free-space system at the AFRL. As an option we will deliver a system working at 1-2 Gb/s.

Principal Investigator:

Gregory S. Kanter
Director, Product Develop

Business Contact:

Prem Kumar
Small Business Information at Submission:

1801 Maple Avenue, Rm 6322 Evanston, IL 60201

EIN/Tax ID: 061695087
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No