[1] A. N. Pilipetskii, "High-Capacity Undersea Long-Haul Systems," J. Lightwave Technol., Vol.12, No.4, pp. 484-496, July/August 2006.
[2] A. N. Pilipetskii and E. A. Golovchenko "Performance Fluctuations in Submarine WDM Systems," J. Lightwave Technol., Vol.12, No.11, pp. 4208-4214, nov. 2006.
[3] T. Ohara, H. Takara, T. Yamamoto, H. Masuda, T. Morioka, M. Abe, and H. Takahashi, "Over-1000-Channel Ultradense WDM Transmission With Supercontinuum Multicarrier Source," J. Lightwave Technol., Vol.24, No.6, pp. 2311-2317, June 2006.
[4] E. M. Dianov, "Advanced in Raman Fibers", J. Lightwave Technol., Vol. 20, No. 8, pp. 1457-1462, Aug. 2002.
[5] M. N. Islam, “Raman Amplifiers for Telecommunications,” IEEE J. Selected Topics in Quantum Elect., Vol. 8, pp.548-559, May/June 2002.
[6] S.K. Kim, S.H. Chang, J.S. Han, M.J. Chu, and J.H.Lee "Distributed Fiber Raman Amplifiers with Localized Loss", J. Lightwave Technol., Vol. 21, No. 5, pp. 1286-1293, May. 2003.
[7] X. Liu and B. Lee ," Optimal Design of Fiber Raman Amplifier Based on Hybrid Genetic Algorithm ", IEEE Photonic Lett. Technol., Vol.16, No.2, pp.428-430, Feb., 2004.
[8] J. Chen and P. R. Xiaorning , " Designing Gain Spectrum of Multi-pump Raman Amplifier," Email Chenjian 97 @mails.tsinghua.edu.cn
[9] J. Hu, B.S. Marks, and C.R. Menynk, "Flat-Gain Fiber Raman Amplifiers Using Equally Spaced Pumps", J. Lightwave Technol., Vol.22, No.6, pp.1519-1522, June, 2004.
[10] J. C. Baoutealler, L. Leng and C. Headley., "Pump-Pump Four Wave Mixing in Distributed Raman Amplified Systems," J. Lightwave Technol., Vol.22, No.3, pp.723-731, March, 2004.
[11] T. Nakashima, S. Seikai, N. Nakazawa, and Y. Negishi, “Theoretical Limit of Repeater Spacing in Optical Transmission Line Utilizing Raman Amplification,” J. Lightwave Technol., Vol. LT-4, No. 8, pp. 1267-1272, Aug.. 1986
[12] E. A. El-Badawy, Abd El-Naser A. Mohammed, A. A. Saad, and M. M. A. Eid, "Maximization of Repeater Spacing Using Multi-Pumping Raman Amplifier of Wide Gain,"Proc. The 10th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI), Vol.V, July 16-19, Orlando, Florida, USA, 2006.
[13] V. N. Vedamurlhy and N. Ch. Lyengar, Numerical Methods, Vik as Publishing House, New Delhi, INDIA, 1998.
W. H. KNox, “The Future of Wavelength Division Multiplexing”, OPN Trends, Vol