Improvement of Bit-Error-Rate in Optical Fiber Receivers

In this paper, a post processing scheme is suggested for improvement of Bit Error-Rate (BER) in optical fiber transmission receivers. The developed scheme has been tested on optical fiber systems operating with a non-return-to-zero (NRZ) format at transmission rates of up to 10Gbps. The transmission system considered is based on well known transmitters and receivers blocks operating at wavelengths in the region of 1550 nm using a standard single mode fiber. Performance of improved detected signals has been evaluated via the analysis of quality factor and computed bit error rates. Numerical simulations have shown a noticeable improvement of the system BER after implementation of the suggested post processing operation on the detected electrical signals.

Authors:

• Hadj Bourdoucen
• Amer Alhabsi

Keywords:

• BER improvement
• Optical fiber
• transmissionperformance
• NRZ.

References:

[1] Meccozi, A.; Wiesenfeld, J. M.:The roles of semiconductor optical
amplifiers in optical networks. Opt. Photon., 3 (2001).
[2] Li, G. L.; Yu, P. K. L.: Optical Intensity Modulators for Digital and
Analog Applications. J. Lightwave Technol., 21 (2003).
[3] Blumenthal, D. J.; Olsson, B.-E.; Rossi, G.; Dimmick, T. E.; Rau, L.;
Ma¡sanovic', M.; Lavrova, O.; Doshi, R.; Jerphagnon, O.; Bowers, J. E.;
Kaman, V.; Coldren, L. A.; and Barton, J.: All-Optical Label Swapping
Networks and Technologies. J. Lightwave Technol., 12 (2000).
[4] A. K. Girard, M. D. Soderberg, "40G and Higher, What is Waiting
for Us Ahead?", 9th International Conference on Transparent Optical
Networks,. ICTON '07. 1 ( 2007).
[5] H. Bissessur, A. Hugbart, S. Ruggeri, C. Bastide, "40G over 10G
infrastructure - dispersion management issues", Optical Fiber
Communication Conference,. Technical Digest, 6 (2005).
[6] Xu, L.; Chi, N.; Yvind, K.; Christiansen, L.J.; Oxenl├©we, L.K.; M├©rk,
J.; Jeppesen P.; Hanberg, J.: 7 × 40 Gb/s base-rate RZ all-optical
broadcasting utilizing an electroabsorption modulator. OSA Optics
Express. 12 (2004).
[7] T. Adali, "Applications of signal processing to optical fiber
communications", 15th Annual Meeting of the IEEE Lasers and Electro-
Optics Society, 2 (2002).
[8] M. Kolesik, M. Matus, J. V. Moloney, "All-Optical Mach-Zehnder-
Interferometer-Based Demultiplexer, A Computer Simulation Study",
IEEE Photon. Technol. Lett. 15 (2003).
[9] V. Sinkin, R. Holzlohner, J. Zweck and C. R. Menyuk, "Optimization of
the split-step Fourier method in modeling optical-fiber communication
systems," J. Lightwave Technol., 21, (2003).