Abstract
A fiber-Bragg-grating (FBG)-based optical code- division multiple-access (OCDMA) network coder/decoder (codec) is investigated for its interference suppression induced by non- flattened broad-band lightwave sources. Since each network user with different signature address code has different spectral distribution , the nonflattened light sources will cause multiple-access interference (MAI). Flatness compensation schemes are proposed to solve the MAI effects induced by nonflattened broad-band light sources. By arranging the same coding scheme but in different spectral coding band, spectral chips from FBG coder/compensator will incoherently power summed in the photodetectors to approach a more flattened power level. Signal-to-interference ratio (SIR) performances are evaluated with such compensation method for the discussed OCDMA network.
Original language | English |
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Pages (from-to) | 739-745 |
Number of pages | 7 |
Journal | Journal of Lightwave Technology |
Volume | 22 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2004 Mar |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics