Acta Optica Sinica, Volume. 30, Issue s1, 100201(2010)
A novel Electric Equalization in 40 Gb/s Pol-Mux RZ-DQPSK Transmission
Investigation of the performance of electronic equalization applied to receiver in the optical communication systems is introduced. Compared with other digital equalizers, maximum likelihood sequence estimator (MLSE) equalizer seems to be the most promising candidate solution to mitigate impairments caused by chromatic dispersion (CD), polarization mode dispersion (PMD) and fiber’s nonlinearity. The performance of a novel MLSE digital equalizer technology is analyzed and it is combined with feed-forward equalizer (FFE) receivers in optical 40 Gb/s polarization-maltiplexed (Pol-Mux) RZ-DQPSK systems. The MLSE receiver combined with FFE technique can achieve a higher CD tolerance and a long haul transmission with 280 km without any optical dispersion compensation and meanwhile the bit error ratio (BER) of the receiver is less than 10-3.
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Lin Mi, Zhang Jinnan, Yuan Xueguang, Zhang Yangan, Zhang Minglun, Huang Yongqing. A novel Electric Equalization in 40 Gb/s Pol-Mux RZ-DQPSK Transmission[J]. Acta Optica Sinica, 2010, 30(s1): 100201
Category: Fiber Optics and Optical Communications
Received: Jun. 1, 2010
Accepted: --
Published Online: Dec. 8, 2010
The Author Email: Mi Lin (lmnice1985@gmail.com)