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分析了采用布喇格光纤光栅的 FH- OCDMA系统中不同群速度失配的光纤信道对系统性能的影响 .群速度失配造成的光脉冲位置偏移 ,在没有补偿措施的情况下 ,普通单模光纤不适于现有的 FH- OCDMA系统 .提出了解决多波长群速度失配问题的补偿方案
The influence of different group velocity mismatched fiber channel on system performance in FH-OCDMA system using Bragg fiber gratings is analyzed.The optical pulse position mismatch caused by group velocity mismatch, without compensation measures, Modal fiber is not suitable for the existing FH-OCDMA system. A compensation scheme is proposed to solve the multi-wavelength group velocity mismatch problem