Flexible and Concurrent All-Optical VPN in OFDMA PON

Author

Xiaofeng Hu ; Pan Cao ; Liang Zhang ; Xinhong Jiang ; Zhiming Zhuang ; Yikai Su

Author_Institution

Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China

Volume

5

Issue

6

fYear

2013

fDate

Dec. 2013

Firstpage

7902707

Lastpage

7902707

Abstract

We propose and experimentally demonstrate a new scheme to support an all-optical virtual private network (VPN) in orthogonal frequency-division multiple-access passive optical networks (OFDMA PONs). In our scheme, VPN communications among optical network units (ONUs) are concurrent, where each ONU can simultaneously transmit/receive different VPN traffic to/from other ONUs. Therefore, VPN communications between any two ONUs can be achieved at any time. The bit rates of VPN traffic can be also flexibly adjusted by using dynamic OFDM subcarrier-allocation technique. The proposed scheme is experimentally demonstrated with 5-Gb/s downlink, 2-Gb/s uplink, and 2-Gb/s VPN OFDM signals. Error-free performances are obtained for all these signals after 25-km standard single-mode fiber (SSMF) transmission.

Keywords

OFDM modulation; frequency division multiple access; passive optical networks; telecommunication traffic; virtual private networks; OFDM subcarrier-allocation technique; OFDMA; PON; all-optical VPN; all-optical virtual private network; bit rate 2 Gbit/s; bit rate 5 Gbit/s; distance 25 km; optical network units; orthogonal frequency-division multiple-access passive optical networks; standard single-mode fiber transmission; Orthogonal frequency-division multiple access (OFDMA); passive optical network (PON); virtual private network (VPN);

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2292300

Filename

6675009