Novel WDM-PON architecture for simultaneous transmission of unicast data and multicast services  

作　　者：朱敏 肖石林 郭薇 胡卫生 Benoit Geller 

机构地区：[1]State Key Lab of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University [2]Lab of Electronics and Computer Engineering, ENSTA ParisTech

出　　处：《Chinese Optics Letters》2010年第10期972-975,共4页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 60972032 and60632010);the National "863" Program of China(Nos. 2006AA01Z251 and 2007AA01Z271).

摘　　要：We propose a novel wavelength-division multiplexed passive optical network （WDM-PON） to simultaneously transmit unicast data and multicast services with upstream data re-modulation in optical network units （ONUs）. For each wavelength channel in the optical line terminal （OLT）, the downstream unicast data are applied to one arm of a dual-parallel Mach-Zehnder modulator （DPMZM） to generate baseband unicast non-return-to-zero （NRZ） signal. A radio frequency （RF） control signal is applied to the other arm to present two un-modulated sidebands for multicast data modulation in a differential phase-shift keying （DPSK） format. The flexible and dynamic multicast services are realized by simply switching the RF control signal on or off. The proposed scheme is experimentally demonstrated with 1.25-Gb/s downstream unicast, multicast, and upstream data.We propose a novel wavelength-division multiplexed passive optical network （WDM-PON） to simultaneously transmit unicast data and multicast services with upstream data re-modulation in optical network units （ONUs）. For each wavelength channel in the optical line terminal （OLT）, the downstream unicast data are applied to one arm of a dual-parallel Mach-Zehnder modulator （DPMZM） to generate baseband unicast non-return-to-zero （NRZ） signal. A radio frequency （RF） control signal is applied to the other arm to present two un-modulated sidebands for multicast data modulation in a differential phase-shift keying （DPSK） format. The flexible and dynamic multicast services are realized by simply switching the RF control signal on or off. The proposed scheme is experimentally demonstrated with 1.25-Gb/s downstream unicast, multicast, and upstream data.

关 键 词：Fiber optic networks Light modulators MULTICASTING Wavelength division multiplexing 

分 类 号：TN929.11[电子电信—通信与信息系统] TN915.63[电子电信—信息与通信工程]