Title :
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
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;
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
DOI :
10.1109/MWP.2011.6088735
