摘要
提出了一种利用码型动态切换的机制来实现波分复用无源光网络中组播业务的传输。组播业务采用DPSK调制格式,下行单播业务采用动态切换的Manchester/NRZ调制格式。其中Manchester调制格式是由下行单播数据和同频的时钟信号通过电逻辑异或门产生。实验验证了同时传输5Gb/s下行点对点信号和1.25Gb/s组播信号的WDM-PON组播传输方案的可行性。
A multicast scheme in Wavelength-Division-Multiplexing passive optical network （WDM-PON） is realized by superimposing multicast differential phase shift keying （DPSK） signal onto downstream point-to-point Manchester/NRZ signal. A commercial electrical logic XOR gate is used to produce Manchester signal. The proposed system is experimentally demonstrated with 5Gb/s point-to-point Manchester/NRZ format signal and 1.25Gb/s DPSK signal. The feasibility of the scheme has been verified by experiment.
出处
《光通信技术》
CSCD
北大核心
2010年第4期6-8,共3页
Optical Communication Technology
基金
国家自然科学基金项目(60972032
60632010)资助
国家863项目(2006AA01Z251)资助
