DocumentCode :
1503809
Title :
Photonic Down-Conversion of Millimeter Wave Multiband Orthogonal Frequency Division Multiplexing Ultra-Wideband Using Four Wave Mixing in an Electro-Absorption Modulator
Author :
Hraimel, Bouchaib ; Zhang, Xiupu ; Wu, Ke
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
Volume :
28
Issue :
13
fYear :
2010
fDate :
7/1/2010 12:00:00 AM
Firstpage :
1987
Lastpage :
1993
Abstract :
We propose and demonstrate a novel and cost-effective photonic down-conversion scheme for millimeter wave (mm-wave) over fiber (MoF) uplinks using an electro-absorption modulator (EAM) at a base station. Two wavelengths with frequency difference of flo, used as dual wavelength, are incident to an EAM that is driven by an mm-wave signal at fmm to obtain optical subcarrier modulation. Due to four-wave mixing (FWM), two new wavelengths are generated inside the EAM and used for the optical carriers for the uplink. One of the generated two wavelengths and one of two mm-wave signal subcarriers is separated by fmm-flo in frequency, thus down-converted. Furthermore, down-conversion with tunability of optical carrier to optical subcarrier power ratio can be achieved by simply controlling the dual wavelength power into the EAM. We experimentally investigate the efficiency of the FWM versus EAM reverse bias voltage and input optical power. The performance of the proposed scheme for down-conversion of a 30 GHz multiband (MB) orthogonal frequency division multiplexing (OFDM) ultra-wideband (UWB) is also investigated in terms of error vector magnitude (EVM) versus RF and LO modulation index, and received optical power at the photodetector.
Keywords :
OFDM modulation; electro-optical modulation; electroabsorption; optical frequency conversion; radio-over-fibre; ultra wideband communication; electro-absorption modulator; error vector magnitude; four wave mixing; frequency difference; millimeter wave multiband orthogonal frequency division multiplexing; millimeter wave over fiber; modulation index; optical subcarrier modulation; optical subcarrier power ratio; photonic down-conversion; ultra-wideband; Electro-absorption modulator; four-wave mixing; millimeter-wave over fiber; multi-band OFDM ultra-wideband; photonic down-conversion;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2010.2051140
Filename :
5473097
Link To Document :
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