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Optical Code Division Multiple Access Systems in High-Speed Telecommunications

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2002 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Boulder Nonlinear Systems, Inc.
450 Courtney Way, Unit 107 Lafayette, CO 80026-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2002
Title: Optical Code Division Multiple Access Systems in High-Speed Telecommunications
Agency / Branch: DOD / USAF
Contract: F49620-02-C-0021
Award Amount: $0.00


"BNS and University of Colorado at Boulder propose a novel spectral optical code division muliple access (OCDMA) system with bipolar coede capability for use in ultra-high-speed communication applications. A prototype one-dimensional spectral OCDMA systemwill by construted, and the feasibility of a two-dimensional (2-D) OCDMA system will be demonstrated using digital micromirror or liquid crystal spatial light modulators (SLMs). The proposed technology integrates muliple encoders for different users into acompact central unit, reducing overall system costs. The use of a 2-D array modulator enables parallel encoding for multiple users, with certain rows dedicated to each user. The advantage of the proposed system is that the spectral codes arereconfigurable. Each subscriber is able to communicate with all other subscribers. With its spectral bipolar code capability, the system can reject multiple access interference. The system can be made very compact even with large numbers of subscriberswhen large format 2-D SLMs are use. Due to its programmability and two-dimensional operation in the optical domain, the system is suitable for implementing optically transparent routings in an ultra-fast Asynchronous Transfer Mode (ATM) switch."

Principal Investigator:

Xiaowei Xia
Principal Investigator

Business Contact:

Mark Tanner
Vice President
Small Business Information at Submission:

Boulder Nonlinear Systems, Inc.
450 courtney Way, Unit 107 Lafayette, CO 80026

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
University of Colorado
Campus Box 525
Boulder, CO 80309
Contact: John Neff
Contact Phone: (303) 492-7135
RI Type: Nonprofit college or university