Title :
The wavelength dilation concept-implementation and system considerations
Author :
Sharony, Jacob ; Stern, Thomas E. ; Cheung, Kwok W.
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
The dilation concept in switching networks is generalized and extended to the wavelength dimensions, resulting in a new class of dynamic wavelength-routing crossconnects. The wavelength dilated switches constitute a new type of high-density, low-crosstalk, fault-tolerant crossconnects. They are scalable, with switch complexity of αNlog2N, where α is the dilation constant, typically 4-6, and N is the number of ports. A novel method for minimizing the crosstalk is described. It is shown that by careful wavelength grouping, the crosstalk is reduced significantly. A new switch architecture is suggested to fully exploit the advantages of this method. An example is given showing how such a fabric can be used to reduce the coherent crosstalk in wavelength-routing switches based on acoustooptic tunable filters
Keywords :
optical links; optical switches; wavelength division multiplexing; acoustooptic tunable filters; crosstalk; dilation constant; dynamic wavelength-routing crossconnects; fault-tolerant crossconnects; switch complexity; switching networks; wavelength dilated switches; wavelength dimensions; wavelength grouping; wavelength-routing switches; Jacobian matrices; Optical control; Optical crosstalk; Optical devices; Optical filters; Switches; Telecommunication switching; Wavelength division multiplexing; Wavelength routing; Waves;
Conference_Titel :
Communications, 1992. ICC '92, Conference record, SUPERCOMM/ICC '92, Discovering a New World of Communications., IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-0599-X
DOI :
10.1109/ICC.1992.268168