A Robst, Adaptive Multiwavelength WDM Transceiver for Optical Fiber Transmission Systems
In the next decade, we will see data transmission with speeds at several tens of gigabits per second (Gb/s) and beyond in long-haul telecommunications networks as well as in LAN, MAN computer networks environments. Time division multiplexing (TDM) based transmission systems become increasingly difficult to implement at higher speeds due to the speed limitations of electronics and in addition, these networks use the available bandwidth inefficiently. As a result, both timing synchronization and bandwidth sharing among large numbers of users become major challenges. Although Wavelength division multiplexing (WDM) eases most of these problems, it introduces wavelength synchronization as the primary technical hurdle. We propose an adaptive and robust WDM receiver that can adjusts dynamically to the sources and thus alleviates many of the most serious and costly disadvantages of WDM. The technical burdens of WDM transmission are shifted to the receiver which is designed to accommodate the manufacturing and operating imperfections of the transmitter sources. Consequently, the receiver has then to be more sophisticated, but the added complexity in the receiver is in VLSI, simple PIN diodes, and passive wave optics. These components are inherently among the least expensive components in an optoelectronic system.
KeywordsWavelength Division Multiplex Wavelength Division Multiplex Network Time Division Multiplex Optical Wavelength Division Multiplex Network Data Transmission Phase
Unable to display preview. Download preview PDF.
- 4.A. Vander Lugt, Optical Signal Processing, (Wiley and Sons Inc., New York 1992)Google Scholar
- 5.J. Lazzaro et al., Neural Information Processing Systems, ed. by D. Touretzky, (Morgan Kaufmann, San Mateo, Californien 1989), 703–711Google Scholar
- 7.C. V. Radehaus, H. Willebrand,”Technical Applications of a 2-D Optoelectronic P-N-P-N Winner-Take-All Array”, published in “Nonlinear Dynamics and Pattern Formation in Semiconductors and Devices”, ed. F.J. Niedernostheide, Springer Proceedings of Physics (Springer Verlag Berlin Heidelberg New York 1994)Google Scholar
- 8.S. A-Elmalak, C. Vaishnav and A. P. Jayasumana, Performance of a Packet Switched WDM Network with Dynamic Wavelength Selection, to appear in Proc. 20th IEEE Conference on Local Computer Networks, Minneapolis MN, Oct. 1995.Google Scholar
- 9.A. P. Jayasumana, et al., Performance of a WDM Network with Dynamic Wavelength Selection for Packet Switching, submitted to IEEE Transactions on NetworkingGoogle Scholar
- 10.H. Willebrand, J. Sauer, C. Radehaus, M. Sprenger, P. Kalra, A. Jayasumana, H. Temkin, A Wavelength Tolerant Robust Optical WDM Network based on an Intellgent Multichannel Wavelength Tracking Receiver, HiNet’96, HonoluluGoogle Scholar