Abstract
A new bidirectional wavelength-division-multiplexed radio-over-fiber
system to simultaneously transmit both wired and wireless gigabit data is
proposed. A Fabry–Pérot laser diode is used as a multiwavelength
optical source. Multimode injection locking technique is implemented to create
single sideband carriers for several base stations. Reflective semiconductor
optical amplifiers are used as modulators for both uplink and downlink. The
experimental demonstration showed that bidirectional 1.25-Gbps wired and 15-GHz
wireless data transmission with bit error rate $\rm (BER) < 10^{-9}$ for three channels
after 23 km was accomplished. Moreover, mitigation of RF signal distortion
due to chromatic-dispersion effect was observed.
© 2009 IEEE
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