Open Access Open Access  Restricted Access Subscription or Fee Access

Developing a Technique to Evaluate 1024 Channel DWDM System using Duo_Binary Modulation

Seema Seema


Signal modulation format is a key issue, which determines transmission quality and spectral efficiency. The most important facts in system, which affects the choices of all other system parameters, is signal modulation format. Optical communication uses different types of modulation formats for efficient transmission of information from one place to other place. Due to huge demand of channel capacity and long haul transmission with very high speed, different modulation formats had been discovered with multiplexing techniques to cover up the requirements.


WDM, NRZ, DB, BER, Fiber Optics.

Full Text:



Don Warren and Justin Moore, “Multiplexing in fiber optics connections”. Summer ventures in Science and Mathematics, 2001.

I. P. Kaminow, et al, ―A Wideband All-Optical WDM Network‖, IEEE Journal on Selected Areas in Communications, Vol.14, No. 5, June 1996, pp. 780 - 799).

Jun Zheng & Hussein T.Mouftah, Optical WDM networks, concepts and Design, IEEE press, John Wiley –Sons, Inc., Publication, p.1-4, 2004.

C. A. Brackett, “Is there an emerging consensus on WDM networking”, Journal of Lightwave technology, vol. 14, pp. 936-941, 1996.

J. K. Townsend and K. S. Shanmugan, “On improving the computational efficiency of digital lightwave link simulations”, IEEE Transactions on Communications, 38(11):2040–2048, November 1990.

S. D. Personic, “Receiver design for digital fiber optic communications systems”, Bell System Technology Journal, 52(6), July 1973.

Anes Hodžić, “Investigation of higher bit rate optical transmission systems employing a employing a channel data rate of 40 Gb/s” Ph.D. thesis, Technischen Universität Berlin, 2004.

Yonggyoo Kim, Yongnoh Lee, Jaehoon Lee, Sungki Kim, and Jichai Jeong, “Improvement of Power Margin in 10-Gb/s SOA-Boosted Transmission Systems Using Phase-Modulated Duobinary Modulation Formats”, IEEE, Photonics technology letters, vol. 16, no. 10, October 2004.

ElRazak, Saleh, M.B., Aly, M.H., “Duobinary modulation format and unequal channel spacing integration to suppress four-wave mixing crosstalk in WDM systems” Electronics, Communications and Photonics Conference (SIECPC) Saudi International, Riyadh, 2011(9)].

C. M. Weinert, R. Ludwig, W. Pieper, H. G. Weber, D. Breuer, K. Petermann, and F. K¨uppers, “40 Gb/s and 4 40 Gb/s TDM/WDM Standard Fiber Transmission”, IEEE, Journal of lightwave technology, vol. 17, no. 11, November1999

Mohamed M. El Said, John Sitch and Mohamed I. Elmasry, “An electrically pre-equalized 10 Gb/s duobinary transmission system”, IEEE, Journal of lightwave technology, vol. 23, no. 1, January 2005.

Keiser, G. E. “A review of WDM technology and applications”, Optical Fiber Technology, 5, 3-39, 1999.

Daisuke Maruhashi , Kzauo Yamane, hiroyasu sumiya, Yasuo Nagai ,” WDM optical fiber transmission systems”, FUJITSU Sci. Tech. J. 35, 1, (July 1999)

Biswanath Mukherjee-―Optical WDM networks‖, Springer, New York, 2006.

Kawal Preet Singh et al., “Performance Analysis of different WDM systems”, International Journal of Engineering Science and Technology (IJEST)

Charles A. Bracckett (2006) reported very broad bandwidth of low-loss optical transmission in a single-mode fiber and the recent improvements in single-frequency tunable lasers have stimulated significant advances in dense wavelength division multiplexed optical networks

Melián, B., Laguna, M., and Moreno, J.A., "Capacity expansion of fiber optic networks with WDM systems: Problem formulation and comparative analysis", Computers and Operations Research, 31(3) (2004) 461- 472.

Jean-Pierre Laude, “DWDM Fundamentals, Components and Applications”, Artech House Optoelectronics Library, London, 2002.

M. I. Hayee and A. E. Willner, Senior Member, IEEE “Pre and Post-Compensation of Dispersion and Nonlinearities in 10-Gb/s WDM Systems”, IEEE Photonics Technology Letters, VOL. 9, NO. 9, SEP 1999

G. Bosco, A. Carena, V. Curri, R. Gaudino, P. Poggiolini, On the use of NRZ, RZ, and CSRZ Modulation at 40 Gb/s with narrow DWDM channel spacing, J. Lightwave Technol. 20 (9) (2002) 1694.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.