In this paper, key technologies, system proposals and future directions of next generation passive optical networks stage 2 （NG-PON2） are reviewed. We first discuss the potential solutions for NG-PON2 standardiza- t...In this paper, key technologies, system proposals and future directions of next generation passive optical networks stage 2 （NG-PON2） are reviewed. We first discuss the potential solutions for NG-PON2 standardiza- tion. Then we focus on time and wavelength division multiplexed PON （TWDM-PON）, which is the primary solution selected by Full Service Access Network （FSAN）. The key technologies in TWDM-PON configuration are analyzed, including how to improve the bandwidth capacity and power budget of the system, and choose upstream tunable transceiver, etc. Several system proposals are illustrated as candidates for NG-PON2 configuration.展开更多
基金This work was supported by the National Basic Research Program （No. 2012CB315602） the National Natural Science Foundation of China （Grant No. 61007041, 61132004, 61090393 and 60825103）Program of Shanghai Chen Guang Scholar （No. 11CG11） and Program of Excellent PhD in China （No. 201155）.
文摘In this paper, key technologies, system proposals and future directions of next generation passive optical networks stage 2 （NG-PON2） are reviewed. We first discuss the potential solutions for NG-PON2 standardiza- tion. Then we focus on time and wavelength division multiplexed PON （TWDM-PON）, which is the primary solution selected by Full Service Access Network （FSAN）. The key technologies in TWDM-PON configuration are analyzed, including how to improve the bandwidth capacity and power budget of the system, and choose upstream tunable transceiver, etc. Several system proposals are illustrated as candidates for NG-PON2 configuration.
