Title :
Phase Modulated Radio-Over-Fiber System for High Order Modulation Millimeter Wave Link
Author :
Herschel, R. ; Schaffer, Christian G.
Author_Institution :
High-Freq. Eng., Helmut Schmidt Univ. Hamburg, Hamburg, Germany
Abstract :
A concept for highly linear radio-over-fiber links at millimeter wave frequencies is presented. The phase modulation based link uses digital processing for linear phase detection. The requirements for low Error-Vector-Magnitudes are analyzed in terms of link noise and third order link nonlinearity. Based on these results the required link bandwidth and susceptibility to chromatic dispersion are discussed. System simulations complement the analytical results to provide a description of link performance for link bandwidth, subcarrier frequency and baseband pulse shape. Experimental results obtained by transmitting higher order modulation formats up to 64QAM at 91 GHz underline the potential of the approach.
Keywords :
optical links; radio links; radio-over-fibre; chromatic dispersion; digital processing; high order modulation millimeter wave link; linear phase detection; link noise; link nonlinearity; low error vector magnitudes; millimeter wave frequencies; phase modulated radio-over-fiber system; subcarrier frequency; Bandwidth; Baseband; Noise; Optical fiber communication; Optical receivers; Phase modulation; Millimeter wave communication; optical fiber communication; phase modulation; quadrature amplitude modulation;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2315662
