Abstract
We present the architecture and code design for a highly scalable, 2.5 Gb/s per user optical code division multiple access (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 a fast frequency-hopping, time-spreading codes. Unlike frequency and phase sensitive coherent OCDMA systems, this architecture utilizes standard on-off keyed optical pulses allocated in the time and wavelength dimensions. This incoherent OCDMA approach is compatible with existing WDM optical networks and utilizes off the shelf components. We discuss the novel optical subsystem designs for encoders and decoders that enable the realization of a highly scalable incoherent OCDMA system with rapid reconfigurability. A detailed analysis of the scalability of the two dimensional code is presented. Broadcast and select network deployment architectures for OCDMA are discussed.
| Original language | English (US) |
|---|---|
| Article number | 59450K |
| Pages (from-to) | 1-13 |
| Number of pages | 13 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5945 |
| State | Published - 2005 |
| Externally published | Yes |
| Event | 14th Slovak-Czech-Polish Conference on Wave and Quantum Aspects of Contemporary Optics - Nitra, Slovakia Duration: Sep 13 2004 → Sep 17 2004 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Applied Mathematics
- Electrical and Electronic Engineering
- Computer Science Applications
Keywords
- Balanced detector
- Broadcast and select architecture
- Carrier-hopping prime code
- Code-drop filter
- Optical CDMA
- Supercontinuum generation
- TOAD