Title
10 GHz channel spacing ultra-dense WDM networks transparently extended by mm-wave coherent RoF links
Abstract
The extension of ultra-dense WDM passive optical networks (PONs) by millimetre-wave coherent radio-over-fiber (RoF) links is investigated. For a seamless and transparent integration of the RoF links coherent heterodyne detection is used for the generation of the wireless RF signals out of the optical baseband data signals. Simulations of the optical SIR in the PON are carried out in dependence on the WDM channel spacing. The projected impact on the transmission quality is derived and WDM CRoF experiments are performed. In the experiments three data modulated optical channels are transmitted over 10 km SMF to simulate the PON, before arriving at the E-band radio access unit (RAU). The RAU utilizes heterodyne detection with an optical LO for converting the 1 Gb/s optical baseband signal to a 75 GHz RF signal. After 40 m wireless transmission the signal is received by an antenna and downconverted to baseband using a low-cost SBD based receiver for envelope detection. The filtering of WDM channels with an optical channel spacing of down to 10 GHz showed very little penalty versus single channel transmission, relying only on the filter characteristic of the used LNAs and antennas and using no optical filters. Still the receiver's sensitivity is only -57 dBm for a bit error rate (BER) of 2·10-3, thus it is shown that an ultra-dense WDM PON can be extended wirelessly using coherent RoF techniques without the need for optical filtering.
Year
DOI
Venue
2015
10.1109/ICCW.2015.7247199
Communication Workshop
Keywords
Field
DocType
channel spacing,heterodyne detection,low noise amplifiers,microwave amplifiers,microwave antennas,microwave oscillators,millimetre wave amplifiers,millimetre wave antennas,millimetre wave oscillators,optical receivers,passive optical networks,radio access networks,radio receivers,radio-over-fibre,wavelength division multiplexing,wireless channels,BER,E-band radio access unit,LNA,MM-Wave coherent RoF link,PON,RAU,SMF,WDM CRoF experiment,WDM channel filtering,bit error rate,coherent heterodyne detection,envelope detection,frequency 10 GHz,low-cost SBD based receiver,millimetre wave coherent radio-over-fiber link,optical LO,optical SIR,passive channel spacing ultra-dense WDM passive optical network,wireless RF signal generation,Coherent optical detection,Millimetre-wave Wireless,Radio-over-Fiber,WDM networks
Wavelength-division multiplexing,Heterodyne detection,Baseband,Channel spacing,Computer science,Optical filter,Passive optical network,Computer network,Optical performance monitoring,Optical cross-connect
Conference
ISSN
Citations 
PageRank 
2164-7038
0
0.34
References 
Authors
1
4
Name
Order
Citations
PageRank
Matthias Steeg121.74
Sebastian Babiel200.34
rattana chuenchom342.28
Stohr, Andreas463.57