A Cost-effective and Low-overhead Chromatic Dispersion Compensation Scheme in TDM PON Systems

Author

Yangyang Chen ; Xian Zhou ; Xue Chen ; Jie Su ; Changlei Li

Author_Institution

State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China

fYear

2012

fDate

8-10 Dec. 2012

Firstpage

1069

Lastpage

1072

Abstract

A cost-effective and low-overhead chromatic dispersion (CD) compensation scheme in TDM PON systems is proposed in this paper. In our scheme only one Electronic Dispersion Compensation (EDC) equalizer is used in OLT receiver to compensate each ONUs´ CD, which is different due to ONUs´ different fiber length. Therefore the cost of TDM PON systems could be reduced greatly. EDC first acquires the tap coefficient corresponding to each ONU by using training sequence and then switch the tap coefficient at corresponding time slot to compensate each ONU´s dispersion respectively. Then the known field of existed overhead in PON system is used to adjust the tap coefficient, which could save overhead significantly. Simulation results show that the scheme is feasible.

Keywords

optical fibre dispersion; passive optical networks; time division multiplexing; OLT receiver; TDM PON systems; electronic dispersion compensation equalizer; fiber length; low-overhead chromatic dispersion compensation scheme; tap coefficient; time slot; training sequence; Dispersion; Optical fibers; Optical network units; Passive optical networks; Time division multiplexing; Training; Chromatic Dispersion; TDM PON; training sequence;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2012 Second International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4673-5034-1

Type

conf

DOI

10.1109/IMCCC.2012.252

Filename

6429088