“…Tianfeng Yang and Xinhong Jia are with the College of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610101, China. choice among many global markets, allowing service providers to meet performance demands effectively and efficiently in access networks [4][5][6]. Up to date, more than 20 operators in the world have deployed XG-PON networks, more than 30 operators have released XG-PON services, and more than 100 operators have released Gigabit services.…”