摘要
波分复用无源光网络(WDM-PON)实现了点到点的连接,可为每个用户提供专有波长,被普遍认为是未来宽带接入的代表性技术。WDM-PON中采用的调制器,既要实现"无色"调制,又要保证系统性能,以降低成本。为此,在强度调制直接检测单模光纤(IMDD SMF)连接系统中,采用半导体光放大器(SOA)作为强度调制器,分析了调制信号与波长的相关性,提出了实现无色自适应调制光正交频分复用(AMOOFDM)传输的优化工作条件。
WDM-PON is a representative technology for the future broadband access,for it could implement point-to-point connection and provides each user with a pair of dedicated wavelengths.The modulator used for WDM-PON could realize ＂colorless＂ optical modulation,guarantee the system performance and reduce the cost.With SOA as intensity modulator over IMDD SMF links,the correlation of modulated signals versus wavelength is analyzed,and the optimum operating conditions in achieving colorless AMOOFDM transmitter are suggested.
出处
《通信技术》
2011年第9期42-44,共3页
Communications Technology
