An optical network unit for WDM access networks with downstream DPSK and upstream remodulated OOK data using injection-locked FP laser

Author

Hung, Wai ; Chan, Chun-Kit ; Chen, Lian-Kuan ; Tong, Frank

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

15

Issue

10

fYear

2003

Firstpage

1476

Lastpage

1478

Abstract

We investigate the use of optical differential phase-shift keying (DPSK) as the downstream modulation format in a low-cost upstream data remodulation scheme for a wavelength-division multiplexing (WDM)-based passive optical network. A 2.5-Gb/s upstream data transmitter is realized by directly modulating a Fabry-Perot (FP) laser, injection-locked with a 10-Gb/s downstream optical DPSK signal. A simple polarization-offset technique is proposed to largely minimize the induced power penalty.

Keywords

differential phase shift keying; optical fibre networks; optical modulation; wavelength division multiplexing; 10 Gbit/s; 2.5 Gbit/s; Fabry-Perot laser; WDM access networks; WDM-based passive optical network; directly modulating; downstream DPSK; downstream modulation format; downstream optical DPSK signal; induced power penalty; injection-locked; injection-locked FP laser; low-cost upstream data remodulation scheme; optical differential phase-shift keying; optical network unit; polarization-offset technique; upstream data transmitter; upstream remodulated OOK data; wavelength-division multiplexing based passive optical network; Differential phase shift keying; Differential quadrature phase shift keying; Fabry-Perot; Optical fiber networks; Optical modulation; Optical network units; Optical transmitters; Passive optical networks; WDM networks; Wavelength division multiplexing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.818055

Filename

1232996