WDM-PON activities in Korea including research and development were reviewed. The WDM-PON commercialized in Korea is aimed at delivering a dedicated symmetric bandwidth to each home, based on the prediction of a small statistical gain for future video-centric services. The developed 32-channel WDM-PON based on wavelength-locked Fabry–Perot LDs was qualified by Korea Telecom (KT) and was deployed in KT’s networks. Many studies have been conducted with the aim of enhancing the performance of the WDM-PON. High-speed data rate per channel, longer reach, narrow channel spacing, and a high split ratio with the help of subcarrier multiple access or time-division multiple access have been demonstrated. A protection method for feeder fiber fault and OSP fault-monitoring methods were also demonstrated. A gradual upgrade solution from the existing time-division multiplexing-PON to WDM-PON has also been proposed.
© 2007 Optical Society of AmericaFull Article | PDF Article
Kwanil Lee, Sang Bae Lee, Ju Han Lee, Young-Geun Han, Sil-Gu Mun, Sang-Mook Lee, and Chang-Hee Lee
Opt. Express 15(8) 4863-4868 (2007)
Sil-Gu Mun, Jung-Hyung Moon, Hoon-Keun Lee, Jun-Young Kim, and Chang-Hee Lee
Opt. Express 16(15) 11361-11368 (2008)
Lehan Meng, Chadi M. Assi, Martin Maier, and Ahmad R. Dhaini
J. Opt. Commun. Netw. 1(4) 279-293 (2009)