Researched is the generation method about carrier-suppressed return-to-zero（CS-RZ） and single sideband return-to-zero（SSB-RZ） formats. The performance is simulated and analyzed when both CS-RZ and SSB-RZ formats are used respectively in symbol overlapping fast frequency hop optical code division multiple access（SO-FFH-OCDMA） system at the transmission rate of 10 Gb/s. The simulation demonstrates that both formats are applicable in OCDMA system. For the system using either CS-RZ or SSB-RZ, Q factor degrades with the increase of transmission distance and increases with the increase of input power. Moreover, the performance of SO-FFH-OCDMA system with CS-RZ is better than that of SSP,-RZ at the same transmission distance and input power.
LI Jie ZHANG Qi XIN Xiang-jun WANG Kui-ru YU Chong-xiu ZHANG Jin-long
Proposed is a novel optical code(OC) label switching scheme in which an optical label is constructed by multiple parallel optical codes.The performances of splitting loss and BER are simulated and analyzed.Simulation results show that the proposed label can be correctly recognized to perform packet switching.Compared with reported schemes using one OC as a label,the splitting loss in our proposal is lowered.
LI Shu-wen ZHANG Qi YU Chong-xiu XIN Xiang-jun XIONG Fei
