Saturated collision amplifier for the extended reach Passive Optical Networks: The upstream challenge

Author

Von Lerber, Tuomo ; Zogal, Karolina ; Gierl, Christian ; Meissner, Peter ; Chaouch, Hacene ; Kueppers, Franko

Author_Institution

Inst. of Microwave Eng. & Photonics, Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2011

fDate

18-21 Oct. 2011

Firstpage

320

Lastpage

323

Abstract

In this paper we discuss about the extended reach 10-Gbit/s Passive Optical Network (XGPON) and the use of a Saturated Collision Amplifier (SCA) for the up- and downstream extension. Especially the upstream amplification is challenging because of the used (i.e. standardized) wavelength and the bursty nature of the traffic. In order to benefit the SCA scheme, the Optical Network Units (ONUs) have to be equipped with low-cost DPSK transmitters. The use of widely tunable direct modulated VCSELs are proposed and discussed.

Keywords

differential phase shift keying; optical fibre amplifiers; optical transmitters; passive optical networks; surface emitting lasers; SCA scheme; bit rate 10 Gbit/s; extended reach passive optical networks; low-cost DPSK transmitters; optical network units; saturated collision amplifier; upstream amplification; widely tunable direct modulated VCSEL; Differential phase shift keying; Optical fiber amplifiers; Optical network units; Optical transmitters; Passive optical networks; Semiconductor optical amplifiers; Vertical cavity surface emitting lasers; Access Networks; PON; Phase Modulation; Reach Extension; SOA; VCSEL;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Photonics, 2011 International Topical Meeting on & Microwave Photonics Conference, 2011 Asia-Pacific, MWP/APMP

Conference_Location

Singapore

Print_ISBN

978-1-61284-716-0

Type

conf

DOI

10.1109/MWP.2011.6088735

Filename

6088735