title: All-optical virtual private network and ONUs communication in optical OFDM-based PON system.
abstract: We propose and demonstrate a novel scheme, which enables all-optical virtual private network (VPN) and all-optical optical network units (ONUs) inter-communications in optical orthogonal frequency-division multiplexing-based passive optical network (OFDM-PON) system using the subcarrier bands allocation for the first time (to our knowledge). We consider the intra-VPN and inter-VPN communications which correspond to two different cases: VPN communication among ONUs in one group and in different groups. The proposed scheme can provide the enhanced security and a more flexible configuration for VPN users compared to the VPN in WDM-PON or TDM-PON systems. The all-optical VPN and inter-ONU communications at 10-Gbit/s with 16 quadrature amplitude modulation (16 QAM) for the proposed optical OFDM-PON system are demonstrated. These results verify that the proposed scheme is feasible.
authors: Key Lab of Optical Fiber Sensing and Communication Networks, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China. cfzhang@uestc.edu.cn
authors: Chongfu
authors: C
authors: Zhang
authors: Jian
authors: J
authors: Huang
authors: Chen
authors: C
authors: Chen
authors: Kun
authors: K
authors: Qiu
mesh_terms: D003195:Computer Communication Networks / Q000295:instrumentation*; D016494:Computer Security / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008872:Microwaves; D055096:Optical Devices; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*