Development of Low-cost OCDMA Encoder Based On Arrayed Waveguide Gratings(AWGs) and Optical Switches
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.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1072193Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1296
 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.
 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.
 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.
 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.
 K. Fouli, and M. Maier, "OCDMA and optical coding: principles, applications, and challenges," IEEE Comm. Mag., vol. 45, pp. 27-34, Aug. 2007.
 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.
 K. Ohara, "Traffic analysis of Ethernet-PON in FTTH trial service," Optical Fiber Commum. Tech. Dig., Anaheim, CA, pp. 607-608, Mar. 2003.
 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.
 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.
 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.