Title :
Nonlinear Effect of OFDM in Radio-over-Fiber transmission
Author :
Bo, Zhang ; Yinghua, Lu ; Jinling, Zhang ; Biao, Yang
Author_Institution :
Beijing Univ. of Posts & Telecommun., Beijing
Abstract :
This paper is concerned with the analysis of the nonlinear distortion of Orthogonal Frequency-Division Multiplex (OFDM) signals caused by semiconductor laser in a Radio-over- Fiber link. A third order polynomial without memory is used to present the nonlinearity of semiconductor laser. The expression of in-band noise due to nonlinear distortion is then derived. Moreover, the relation of carrier-to-noise ratio with optical modulation index is analyzed. The analytical method is applicable for nonlinearity analysis and useful to select the optical modulation index of OFDM- ROF system.
Keywords :
OFDM modulation; fibre lasers; nonlinear optics; optical fibre networks; optical modulation; radio-over-fibre; semiconductor lasers; OFDM system; optical modulation index; orthogonal frequency-division multiplex; radio-over-fiber transmission; semiconductor laser; Fiber lasers; Frequency division multiplexing; Laser noise; Nonlinear distortion; OFDM; Optical modulation; Polynomials; RF signals; Semiconductor lasers; Signal analysis; OFDM; nonlinearity; radio over fiber;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2007. ICMMT '07. International Conference on
Conference_Location :
Builin
Print_ISBN :
1-4244-1049-5
Electronic_ISBN :
1-4244-1049-5
DOI :
10.1109/ICMMT.2007.381375
