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Multiple access interference rejection in OCDMA using a two-photon absorption based semiconductor device
- Source :
- Optics Communications. 282:1281-1286
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- An experimental demonstration of a two-channel OCDMA system with detection performed using standard linear detection or a TPA-based nonlinear detector is presented. These results show an improvement in the extinction ratio of the decoded signal by ∼5 dB using TPA detection. A simulation model of the TPA detector used during the experiments was created and used in a four-channel OCDMA system simulation using both linear and nonlinear detection methods. The simulation results show that error-free performance is achievable for a 4-user system using the nonlinear TPA detector while the OCDMA system employing linear detection is severely limited by the effects of noise generated by adjacent optical channels (multiple access interference).
- Subjects :
- Physics
Extinction ratio
business.industry
Code division multiple access
Detector
Optical communication
Physics::Optics
Noise (electronics)
Two-photon absorption
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Optics
Interference (communication)
Adjacent channel
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
business
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 282
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........69244f1f0281e3ef1bce0d349fe5c5f5