TY - GEN
T1 - Using free-spectral range of waveguide gratings to compensate for optical CDMA spectral flattenness
AU - Huang, Jen Fa
AU - Huang, Chun Ming
AU - Hsu, Chung Chih
PY - 2007
Y1 - 2007
N2 - Spectrum compensation over an arrayed-waveguidegrating (AWG)-based optical code-division multipleaccess (OCDMA) network coder/decoder (codec) is investigated. Since each network user with different signature address code has different spectral distribution, the non-flattened broadband light source will cause multiple-access interference (MAI). Flattenness compensation scheme is proposed to solve the MAI effects induced by non-flattened light sources. By arranging the same coding scheme but at different coding bands, spectral chips from AWG coder/decoder will incoherently power summed by FSR characteristic of AWG in the photo-detectors to approach a more flattened power level. Performances of signal-to-interference ratio (SIR) are finally evaluated with such compensation method for the discussed OCDMA network codecs.
AB - Spectrum compensation over an arrayed-waveguidegrating (AWG)-based optical code-division multipleaccess (OCDMA) network coder/decoder (codec) is investigated. Since each network user with different signature address code has different spectral distribution, the non-flattened broadband light source will cause multiple-access interference (MAI). Flattenness compensation scheme is proposed to solve the MAI effects induced by non-flattened light sources. By arranging the same coding scheme but at different coding bands, spectral chips from AWG coder/decoder will incoherently power summed by FSR characteristic of AWG in the photo-detectors to approach a more flattened power level. Performances of signal-to-interference ratio (SIR) are finally evaluated with such compensation method for the discussed OCDMA network codecs.
UR - https://www.scopus.com/pages/publications/56149103512
UR - https://www.scopus.com/pages/publications/56149103512#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:56149103512
SN - 9780889866591
T3 - Proceedings of the 7th IASTED International Conferences on Wireless and Optical Communications, WOC 2007
SP - 453
EP - 458
BT - Proceedings of the 7th IASTED International Conferences on Wireless and Optical Communications, WOC 2007
T2 - 7th IASTED International Conferences on Wireless and Optical Communications, WOC 2007
Y2 - 30 May 2007 through 1 June 2007
ER -