Design and demonstration of a novel incoherent optical CDMA system

I. Glesk, V. Baby, C. S. Brès, P. R. Prucnal, W. C. Kwong

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

3 Citations (Scopus)


A detailed analysis of the scalability of two-dimensional optical codes is presented and two network deployment architectures for optical code division multiple access (OCDMA) are discussed. We present the architecture and or a highly scalable, 2.5 Gb/s per user code design for OCDMA system. The system is scalable to 100 potential and more than 10 simultaneous users, each with BER of less than 10(-9). The system architecture uses fast wavelength-hopping, time-spreading codes. Unlike phase sensitive coherent OCDAM systems, this architecture utilizes standard on-off-keyed optical pulses allocated in the time and wavelength domains. This incoherent OCDMA approach is compatible with existing WDM optical networks and utilizes off-the-shelf components. We discuss a novel optical subsystems design for encoders and decoders that enable the realization of a highly scalable incoherent OCDMA system with rapid reconfigurability. We demonstrate the operation of 4 simultaneous users operating at OC-48 (similar to 2.5 Gbit/s) with a power penalty of < 0.5dB and the reduction of mulliple-access interference using ultra-fast all-optical sampling with newly proposed TOAD-based OCDMA receiver.
Original languageEnglish
Title of host publicationProceedings - IEEE Military Communications Conference MILCOM
Place of PublicationNew York
Number of pages6
ISBN (Print)0780393937
Publication statusPublished - 2005
EventMILCOM 2005: Military Communications Conference 2005 - Atlatnic City, NJ, United Kingdom
Duration: 17 Oct 200520 Oct 2005

Publication series

NameIEEE Military Communications Conference
ISSN (Electronic)2155-7578


ConferenceMILCOM 2005: Military Communications Conference 2005
Country/TerritoryUnited Kingdom
CityAtlatnic City, NJ


  • design
  • demonstration
  • incoherent
  • optical
  • cdma system


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