**The Future Electrical Multiplexing Technique for High Speed Optical Fibre**

Rahmat Talib and Mohammad Faiz Liew Abdullah

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/intechopen.68407

#### **Abstract**

[6] Skorin‐Kapov N, et al. A new approach to optical networks security: Attack‐aware rout‐ ing and wavelength assignment. IEEE/ACM Transactions on Networking. 2010;**18**(3):

[7] Skorin‐Kapov N, Furdek M, Pardo R, Mariño P. Wavelength assignment for reducing in‐band crosstalk attack propagation in optical networks: ILP formulations and heu‐ ristic algorithms. European Journal of Operational Research. 2012;**222**(3):418–429. DOI:

[8] Manousakis K, Ellinas G. Attack‐aware planning of transparent optical networks. Optical Switching and Networking. 2016;**19**(2):97–109. DOI: 10.1016/j.osn.2015.03.005

[9] Jirattigalachote A, Skorin‐Kapov N, Furdek M, Chen J, Monti P, Wosinska L. Sparse power equalization placement for limiting jamming attack propagation in transpar‐ ent optical networks. IEEE/OSA Journal of Optical Communications and Networking.

[10] Manousakis K, Ellinas G. Equalizer placement and wavelength selective switch architec‐ ture for optical network security. In: Proceedings of the IEEE Symposium on Computers

[11] Verbrugge S, Colle D, Pickavet M, Demeester P. Common planning practices for network dimensioning under traffic uncertainty. In: Proceedings of the 4th IEEE International Workshop on the Design of Reliable Communication Networks (DRCN); October 2003;

[12] Leung D, Grover WD. Capacity planning of survivable mesh‐based transport networks under demand uncertainty. Photonic Network Communications. 2005;**10**(2):123–140.

[13] Birge JR, Louveaux F. Introduction to Stochastic Programming. New York: Springer‐

[14] Bertsimas D, Sim M. The price of robustness. Operations Research. 2004;**52**(1):35–53.

[15] Aparicio‐Pardo R, Pavon‐Marino P, Mukherjee B. Robust upgrade in optical networks under traffic uncertainty. In: Proceedings of the 16th IEEE International Conference on Optical Network Design and Modelling (ONDM); Colchester. 2012. pp. 1–6. DOI:

[16] Kronberger C, Schondienst T, Schupke DA. Impact and handling of demand uncertainty in multiperiod planned networks. In: Proceedings of the IEEE International Conference

on Communications (ICC); Kyoto. 2011. pp. 1–6. DOI: 10.1109/icc.2011.5962890

[17] GÉANT2 Network. Available from: http://www.geant2.net/

and Communication; Cyprus. 2015. DOI: 10.1109/ISCC.2015.7405631

Banff, Alberta, Canada. pp. 317–324. DOI: 10.1109/DRCN.2003.1275372

750–760. DOI: 10.1109/TNET.2009.2031555

2011;**8**(4):249–258. DOI: 10.1016/j.osn.2011.06.008

10.1016/j.ejor.2012.05.022

66 Optical Fiber and Wireless Communications

DOI: 10.1007/s11107‐005‐2479‐z

DOI: 10.1287/opre.1030.0065

10.1109/ ONDM.2012.6210204

Verlag; 2011. ISBN: 978‐1‐4614‐0236‐7

Advancement in transmission technology based on fiber optic such as multiplexing technique is an attractive research area for future development of high capacity and high speed optical communication system. Typical electrical based multiplexing such as electrical time division multiplexing (ETDM) and duty cycle division multiplexing (DCDM) have difficulty to fulfil the requirements of modern fiber optic communication with practical solution. Multi slot amplitude coding (MSAC) is the latest multiplexing technique that has been proposed as an alternative to ETDM and DCDM. The results show that the spectral width is reduced by around 25%, not less than 55% improvement of chromatic dispersion (CD) tolerance, 0.6 dB better receiver sensitivity, and 1.5 dB better optical signal to noise ratio (OSNR) compared to DCDM for 30 Gbit/s transmission capacity. The spectral width for 3 × 10 Gbit/s, 4 × 10 Gbit/s and 5 × 10 Gbit/s MSAC is 60 GHz, which indicates improvement of spectral efficiency. This advantage is not possible to be achieved through ETDM technique. In addition, 10 GHz clock signal can be extracted from the MSAC signal which is important for recovery circuit at receiver since it is similar to symbol rate.

**Keywords:** optical fibre communication, multiplexing, optical modulation
