Title :
Counteracting 16-QAM Optical Fiber Transmission Impairments With Iterative Turbo Equalization
Author :
Arlunno, Valeria ; Caballero, Antonio ; Borkowski, Robert ; Zibar, D. ; Larsen, Knud J. ; Monroy, I.T.
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
A turbo equalization (TE) scheme based on convolutional code and normalized least mean square equalizer for coherent optical communication links is proposed and experimentally demonstrated. The proposed iterative TE technique is proved effective for counteracting polarization-division-multiplexing 16 quadrature amplitude modulation impairments in dispersion uncompensated coherent transmission links. Gains exceeding one order of magnitude in terms of bit error rate are obtained in experimental validation up to 497 km-standard single mode fiber link transmission.
Keywords :
compensation; convolutional codes; equalisers; error statistics; forward error correction; iterative methods; least mean squares methods; multiplexing; optical fibre communication; optical fibre dispersion; optical modulation; quadrature amplitude modulation; 16-QAM optical fiber transmission impairments; bit error rate; coherent optical communication links; convolutional code; dispersion uncompensated coherent transmission links; distance 497 km; error forward error correction; iterative TE technique; iterative turbo equalization; normalized least mean square equalizer; polarization-division-multiplexing; quadrature amplitude modulation; standard single mode fiber link transmission; Bit error rate; Equalizers; Optical fiber communication; Optical fibers; Optical noise; Quadrature amplitude modulation; Signal to noise ratio; Digital signal processing; forward error correction; optical fiber communication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2281239
