Title :
Optimum nonblocking networks for photonic switching
Author :
Dragone, Corrado
Author_Institution :
Crawford Hill Lab., Lucent Technol. Bell Labs., Holmdel, NJ, USA
Abstract :
We systematically minimize the number of elements in a N/spl times/N crossconnect consisting of 2/spl times/2 elements. The derivation covers all cases of interest, including dilated arrangements with negligible crosstalk. The relationship between number of elements and important parameters such as crosstalk, depth, and width is obtained. If N is not too large, and if stringent requirements are imposed on loss and crosstalk, then we show that the N/spl times/N arrangement is best realized using binary trees. The derivation also applies to arrangements including wavelength routers and channel adding/dropping filters.
Keywords :
optical crosstalk; optical fibre filters; optical fibre networks; optical losses; optimisation; photonic switching systems; telecommunication network routing; trees (mathematics); 2/spl times/2 elements; N/spl times/N arrangement; N/spl times/N crossconnect; binary trees; channel adding/dropping filters; crosstalk; depth; dilated arrangements; loss; negligible crosstalk; optimum nonblocking networks; photonic switching; wavelength routers; width; Binary trees; Optical crosstalk; Optical fiber devices; Optical fiber filters; Optical fiber networks; Optical filters; Optical losses; Optical sensors; Optical switches; Wavelength routing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.902152
