Upstream transmission of WDM/OCDM-PON in a loop-back configuration with remotely supplied short optical pulses

Author

Choi, Yang-Kyu ; Hanawa, Masanori ; Wang, Xiongfei ; Park, Choon-Sang

Author_Institution

School of Information and Communications, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-Gu, Gwangju 500-712, South Korea

Volume

5

Issue

3

fYear

2013

fDate

March 1 2013

Firstpage

183

Lastpage

189

Abstract

We propose and experimentally demonstrate upstream transmission in a wavelength division multiplexing/optical code division multiplexing (WDM/OCDM) passive optical network (PON) without using any high-cost devices such as mode-locked lasers or LiNbO₃ external modulators. To make optical network units (ONUs) simple, a loop-back transmission of short optical pulses for OCDM in upstream transmission was investigated. The quality of the short optical pulses, remotely supplied via 23 km of single-mode fiber (SMF), was sufficient for 4-chip OCDM encoding at the ONUs.2WDM/4OCDM signals, generated by multiplexing four OCDM signals using the same wavelength as well as another signal with a different wavelength, showed error-free transmission (bit error rate BER < 10^–9) over a 23 km SMF at 1.25 Gb/s.

Keywords

Bit error rate; Code division multiplexing; Optical fiber amplifiers; Optical network units; Optical pulses; Passive optical networks; Wavelength division multiplexing; Optical code division multiplexing(OCDM); Passive optical network (PON); Reflective semiconductoroptical amplifier (RSOA); Short optical pulsesource; Wavelength division multiplexing (WDM);

fLanguage

English

Journal_Title

Optical Communications and Networking, IEEE/OSA Journal of

Publisher

ieee

ISSN

1943-0620

Type

jour

DOI

10.1364/JOCN.5.000183

Filename

6481087