 ISBN- 13: 978-0471430803. 18. Iannone, E., Matera, F., Mecozzi, A., Settembre, M., Nonlinear Optical Communication Networks- Appendix A1, Wiley, New York, s.l., 1998, ISBN-13: 978-0471152705. 19. Gordon, J. P., Mollenauer, L. F., Solitons in Optical Fibers: Fundamentals and Applications, 1st edn., Academic Press (Kindle Edition), Burlington, MA, s.l., 2006, ASIN: B000PY3CWE. 20. Hamza, M. Y., Tariq, S., Split step Fourier method based pulse propagation model for nonlinear fiber optics, International Conference on Electrical Engineering ICEE '07, Hong Kong, IEEE, s.l., pp. 1-5, July 8-12, 2007. 21. Chraplyvy, A. R., Limitations on lightwave communications imposed by optical fiber nonlin- earities, Journal of Lightwave Technology, 8, 1548-1557 (1990). 22. Kivshar, S. Y., Agrawal, G., Optical Solitons: From Fibers to Photonic Crystals, Academic Press, San Diego, CA, s.l., 2003, ISBN-13: 978-0124105904. 23. Tkach, R. W., Chraplyvy, A. R., Forghieri, F., Gnauck, A. H., Derosier, R. M., Four photon mixing and high speed WDM systems, IEEE Journal of Lightwave Technology, 13, 841-849 (1995). Shibate, N., Horigudhi, M., Edahiro, T., Raman spectra of binary high-silica glasses and fibers containing GeO2, P2O5 and B2O3, Journal of Non-Crystalline Solids, 45, 115-126 (1981). 25. Cotter, D., Observation of stimulated Brillouin scattering in low loss silica fiber at 1.3 um, Electronics Letters, 18, 495-496 (1982). 26. Buckland, E. L., Boyd, R. W., Electrostrictive contribution to the intensity-dependent refractive index of optical fiber, Optics Letters, 21, 1117-1119 (1996). 27. Nikles, M., Thevenaz, L., Robert, P. A., Brillouin gain spectrum characterization in single-mode optical fiber, IEEE Journal of Lightwave Technology, 15, 1842-1851 (1997). 28. Mendez, A., Morse, T.F., Specialty Optical Fibers Handbook, Academic Press, Burlington, MA, s.l., 2007, ISBN-13: 978-0123694065. Telecommunication Networks 29. Li, M. J., Chen, X., Nolan, D. A., Berkey, G. E., Wang, J., Wood, W. A., Zenteno, L. A., High bandwidth single polariza