Development of Low-cost OCDMA Encoder Based On Arrayed Waveguide Gratings(AWGs) and Optical Switches
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32922
Development of Low-cost OCDMA Encoder Based On Arrayed Waveguide Gratings(AWGs) and Optical Switches

Authors: Mohammad Syuhaimi Ab-Rahman, Boon Chuan Ng, Norshilawati Mohamad Ibrahim, Sahbudin Shaari


This paper describes the development of a 16-ports optical code division multiple access (OCDMA) encoder prototype based on Arrayed Waveguide Grating (AWG) and optical switches. It is potentially to provide a high security for data transmission due to all data will be transmitted in binary code form. The output signals from AWG are coded with a binary code that given to an optical switch before it signal modulate with the carrier and transmitted to the receiver. The 16-ports encoder used 16 double pole double throw (DPDT) toggle switches to control the polarization of voltage source from +5 V to -5 V for 16 optical switches. When +5 V is given, the optical switch will give code '1' and vice versa. The experimental results showed the insertion loss, crosstalk, uniformity, and optical signal-noise-ratio (OSNR) for the developed prototype are <12 dB, 9.77 dB, <1.63dB, and ≥20dB.

Keywords: AWG, encoder, OCDMA, optical switch.

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1559


[1] C. Assi, Y. Ye, and S. Dixit, "Dynamic bandwidth allocation for quality of service over Ethernet PONs," IEEE Select. Areas Commun., vol. 21, pp. 1467-1477, Nov. 2003.
[2] C.F. Zhang, K. Qiu, and B. Xu, "Investigation on performance of passive optical network based on OCDMA," in 2006 International Conference on Communications, Circuits and Systems Proceedings, vol. 3, pp. 1851- 1855, 25-28 Jun. 2006.
[3] H. Fathallah, "Optical CDMA communications and the use of OFCs," in Optical Fiber Components: Design and Applications, H. Hamam, Ed., Research Signpost, Trivandrum, Kerala, India, Jan. 2006, pp. 201-43.
[4] J.A. Salehi, "Code division multiple-access techniques in optical fiber networks - parts 1: fundamental principles," IEEE Trans. Commum., vol. 37, pp. 824-833, Aug. 1989.
[5] K. Fouli, and M. Maier, "OCDMA and optical coding: principles, applications, and challenges," IEEE Comm. Mag., vol. 45, pp. 27-34, Aug. 2007.
[6] K. Iwatsuki, J. I. Kani, and H. Suzuki, "Access and metro networks based on WDM technologies," J. Lightwave Technol., vol. 22, pp. 2623-2630, Nov. 2004.
[7] K. Ohara, "Traffic analysis of Ethernet-PON in FTTH trial service," Optical Fiber Commum. Tech. Dig., Anaheim, CA, pp. 607-608, Mar. 2003.
[8] S.J. Park, B.K. Kim, and B.W. Kim, "An OCDMA scheme to reduce multiple access interference and enhance performance for optical subscriber access networks," ETRI Journal, vol. 26, no. 1, pp. 13-20, Feb. 2004.
[9] T. Koonen, "Fiber to the home/fiber to the premises: what, where, and when?," in Proc. IEEE, vol. 94, no. 5, pp. 911-34, May 2006.
[10] X. Wang, N. Wada, T. Miyazaki, G. Cincotti, and K. Kitayama, "Field trial of asynchronous WDM/DPSK-OCDMA using hybrid E/D," J. Lightwave Technol., vol. 25, pp. 207-215, 2007.