Chinese Optics Letters, Volume. 8, Issue 4, 377(2010)
Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system
A cost-effective method of multi-receiver optical orthogonal frequency-division multiplexing (OOFDM) system is proposed to reduce the requirement for the speed of the receiver and the size of fast Fourier transform (FFT). The sampling rate of analog-to-digital converters (ADCs) can be reduced to 1/N of the original signal bandwidth in an N-receiver system. Aided by signal predistortion at the transmitter, aliasing-free signal can be retrieved independently and directly at the low speed receivers. A back-to-back experimental result is given for a two-receiver system. The effect of the electrical filters added before the ADC is studied and the analysis for filters optimization is given.
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Lin Cheng, He Wen, Xiaoping Zheng, Hanyi Zhang, Yili Guo. Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system[J]. Chinese Optics Letters, 2010, 8(4): 377
Received: May. 25, 2009
Accepted: --
Published Online: Apr. 20, 2010
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