Generic Model and Analysis of Asymmetric Spanke Optical Switch Configuration

Abstract

Spanke switch architecture is predominantly used in telecommunication switching circuits. In this architecture the number of inlets is equal to the number of outlets (symmetric type). However, some applications require unequal number of inlets and outlets (asymmetric type). No model is available to characterize the parameters of the asymmetric configuration. This paper analyses the parameters of asymmetric Spanke optical switch configuration. The analysis has been done for the number of switch elements, number of crossovers, maximum loss and minimum loss. Also their corresponding behaviors are obtained. A comparison has been made between asymmetrical and symmetrical configurations. The proposed analysis model can be used for both types of Spanke configurations to get optimal number of switch elements and crossovers.

Indexing terms:

• Spanke asymmetric switch architecture
• Switch elements
• Crossovers
• Maximum loss
• Minimum loss

Additional information

Notes on contributors

R Nakkeeran

R Nakkeeran received BSc degree in Science and BE degree in Electronics and Communication Engineering from the Madras University in 1987 and 1991 respectively and ME degree in Electronics and Communication Engineering (diversification in Optical Communication) from the Anna University in 1995. Recently, he submitted PhD thesis to Pondicherry University. Since 1991, he has been working as lecturer. Presently, he is senior lecturer in Pondicherry Engineering College, Pondicherry. He is life member of IETE, ISTE, OSI and SSI. Also he is annual member of SPIE. He was member of IEEE. He has published thirty five papers in national and international conference proceedings and journals. His areas of interest are Optical Communication, Optical Networks, Digital Signal processing, Electromagnetic Fields and Antennas.

T G Palanivelu

T G Palanivelu, acquired bachelor and masters degree in Electronics and Communication Engineering from College of Engineering, Chennai during 1971 and 1973 respectively. Completed doctoral work and obtained the degree from Indian Institute of Science, Bangalore in 1981. Started the teaching in the Government College of Technology, Coimbatore, India and served Regional Engineering College for 12 years and Pondicherry Engineering College as Professor and Head for more than eighteen years. Also served as Principal in both Government and Private Colleges. Involved in research activities in the field of adaptive and mobile communication. Published more than dozen papers. Currently working in the field of adhoc and blue tooth technology.

M Thatchayani

M Thachayani, acquired B Tech and M Tech degrees in Electronics and Communication Engineering from Pondicherry Engineering College in 2000 and 2002 respectively. Now she is working as lecturer in SMV Engineering College, Pondicherry University. Her areas of interest are optical networks, wireless networks, DSP and VLSI.