erence, OFC 2003, Atlanta, GA, IEEE, s.l., Vol. 2, pp. 616-618, March 2003. 7. Murakami, M., Oda, K., Power consumption analysis of optical cross-connect equipment for future large capacity optical networks, 11th International Conference on Transparent Optical Networks, ICTON '09, Sao Miguel (Azores), Portugal, IEEE, s.l., June 2009. 8. Staessens, D. et al., Assessment of economical interest of transparent switching, European Conference on Optical Communications, ECOC 2005, Glasgow, U.K., Vol. 4, pp. 861-862, September 29, 2005. 9. Tkach, R. W. et al., Fundamental limits of optical transparency, Optical Fiber Communication Conference and Exhibit, OFC '98, San Jose, CA, IEEE, s.l., pp. 61-62, February 22-27, 1998. 10. Marciniak, M., Transparency of optical networks: How to manage it? International Conference on Transparent Optical Networks, ICTON 1999, Kielce, Poland, IEEE, s.l., pp. 85-88, June 2009. 11. Saradhi, C. V., Subramaniam, S., Physical layer impairment aware routing (PLIAR) in WDM optical networks: Issues and challenges, IEEE Communication Surveys and Tutorials, 11(4), 109-130 (2009). 12. Devaux, F., All-optical 3R regenerators: Status and challenges, 17th International Semiconductor Laser Conference, 2000, Hyatt Monterey, Monterey, CA, IEEE, s.l., pp. 5-6, September 25-28, 2000. 13. Hainberger, R. et al., BER estimation in optical fiber transmission systems employing all-optical 2R regenerators, IEEE Journal of Lightwave Technology, 23(3), 746-754 (2004). 14. Matsumoto, M., Performance comparison of all-optical signal regenerators utilizing self-phase modulation in fibers, Optical Fiber Communication Conference, OFC 2003, Atlanta, GA, IEEE, s.l., Vol. 1, pp. 108-109, March 2003. 15. Chestnut, D. A., Taylor, J. R., Fibre optical wavelength-converter employing cross-phase modulation and low-threshold non-adiabatic Raman compression, Electronics Letters, 39(15), 1133-1134 (2003). 16. Rauschenbach, G.A. et al., All-optical pulse width and wavelength conversion at 10Gb/s using a nonlinear optical loop mirro