Short-Courses

Abstract. This course will cover the impact of the polarization effects in optical fiber systems, including the technologies that have been developed to model and to mitigate those effects and how they interact with the other effects that degrade the performance of optical fiber systems, such as fiber nonlinearity and amplified spontaneous emission noise.

 

 

Short-course 2
Fundamentals of Photonics and Integrated Optics
Vitaly Rodriguez Esquerre, Federal Insitute of Bahia, Brazil.
Abstract. During the last decades, there has been an explosive growth in systems based on optical fiber communications and they require a large number of optical devices such as waveguides, couplers and filters. Most of these devices have been realized using integrated-optic techniques with a large number of advantages. In this way it is extremely important to impart a minicourse at IMOC2009 in the area of integrated optics to help understanding their operating and design principles. References 1. H. Kogelnik, "An introduction to integrated optics," IEEE Trans. Microwave Theor. Tech. MTT-23, 216 (1975). 2. Donald Lee, Electromagnetic Principles of Integrated Optics, John Wiley & Sons, 1986. 3. Hiroshi Nakamura, Optical Integrated Circuits, McGraw-Hil, 1989. 4. Ginés Lifante, Integrated Photonics: Fundamentals, Wiley, 2003.

 

 

Short-course 3
Bio-inspired algorithms in Computational Electromagnetism
Carlos Silva-Santos, Universidade Estadual de Campinas, Brazil
Marcos Gonçalves, Centro Superior de Educaçao Tecnológica, Brazil
Hugo Figueroa, DMO/Unicamp, Brazil.
Abstract. This course presents some bio-inspired algorithms concepts to develop efficient optimization tools for computational electromagnetism applications. It is presented in three different sections. The first presents bio-inspired algorithms concepts. Second section presents sophisticated techniques to improve the performance of computational electromagnetic optimizations. The third shows recent applications and trends.

 

 

Short-course 4
Photonic Switching in Advanced Optical Networks
Felipe Rudge Barbosa, FEEC-Unicamp, Brazil.
Abstract. Photonic switching is today a major breakthrough in optical networks. It is an attractive practical solution to switching due to the maturity of fiber optic technology, in particular WDM active and passive components, as well as the widespread availability of top quality installed fiber cables. It brings the conventional switching and routing functions from the electronic domain to the optical domain. Optical switches installed in the network nodes are capable of directing traffic from input-to-output ports with high throughput, low latency and transparent transport of data, without recurring to costly and time-consuming opto-eletric conversions.

 

 

Short-course 5
Broadband Wireless Access: 3G, WiFi e WiMax
Luiz da Silva Mello, Glaucio Siqueira, PUC/Rio, Brazil.
Abstract. Basic concepts of wireless networks: cell clusters, reuse factor; access techniques, network architecture; propagation in urban regions and indoor propagation; coverage prediction and interference calculations. Technologies: 3G WCDMA; WLAN IEEE 802.11 (WiFi); WMAN IEEE 802.16 (WiMax). Planning principles: 3G networks planning; WiFi coverage and capacity planning; WiMax networks planning; Software tools.

 

 

Short-course 6
A look at some of the Principles of Wireless Communication from a Maxwellian Viewpoint
Tapan Sarkar, Syracuse University, USA.
Abstract. In recent times, there has been a plethora of papers in the published literature dealing with wireless communication. Many of these techniques when viewed under the Maxwellian framework raise more questions than they answer. By Maxwellian framework we imply not only the relevance of electromagnetics in studying communication systems but also the proper interpretation of an ensemble processing in mathematical physics which was first introduced by Maxwell to study the behavior of an aggregate of molecules rather than the property of individuals. Initially, most of the modern signal processing techniques was developed for scalar acoustic problems. However, with the advent of wireless, these same techniques are being applied to the vector electromagnetics problem, which is fundamentally different in concept with respect to the scalar acoustic problem. The objective of this presentation is to discuss some of these concerns associated with some of the current modeling methodologies particularly related to propagation modeling and antenna diversity. A goal is to initiate a dialog about the scientific merits of these new applications. One of the points to be made is that an incorrect use of probability theory can often lead to erroneous conclusions that directly contradict the principles of physics. A few examples are presented utilizing an accurate electromagnetic methodology to initiate this dialog, mainly the applicability of scalar techniques to the vector wireless problem, including a proper interpretation of the Shannon Channel Capacity theorem. A methodology is also presented to illustrate how embarrassingly simple a multiple-input-multiple-output (MIMO) system can be based on the principles of reciprocity. Integration of the electromagnetic principles in some of the current methodologies of signal processing and communications theory may lead to a better system.