Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system
Chinese Optics Letters, Vol. 8, Issue 4, pp. 377-380 (2010)
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Abstract
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.
© 2010 Chinese Optics Letters
OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.4080) Fiber optics and optical communications : Modulation
(060.4230) Fiber optics and optical communications : Multiplexing
Citation
Lin Cheng, He Wen, Xiaoping Zheng, Hanyi Zhang, and Yili Guo, "Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system," Chin. Opt. Lett. 8, 377-380 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-4-377
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