Title :
Wavelength dilated switches (WDS)-a new class of high density, suppressed crosstalk, dynamic wavelength-routing crossconnects
Author :
Sharony, Jacob ; Cheung, Kwok W. ; Stern, Thomas E.
Author_Institution :
Center for Telecommun. Res., Columbia Univ., New York, NY, USA
Abstract :
The concept of dilated space-division switches is generalized to the wavelength dimension, resulting in a new class of dynamic wavelength-routing crossconnects. These wavelength dilated switches (WDSs) are reconfigurable and feature suppressed crosstalk and denser wavelength-spacings. They are scalable, with switch-complexity of alpha N log/sub 2/ N where alpha is the dilation constant, typically 4-6, and N is the number of ports. A method for minimizing the crosstalk is described, and it is demonstrated with examples how the WDS can relax the crosstalk requirement of the wavelength routing devices.<>
Keywords :
crosstalk; frequency division multiplexing; optical communication equipment; optical switches; WDM networks; crosstalk minimisation; denser wavelength-spacings; dilated space-division switches; dilation constant; dynamic wavelength-routing crossconnects; high density; suppressed crosstalk; switch-complexity; wavelength dilated switches; wavelength dimension; Channel spacing; Cities and towns; Crosstalk; Filters; Jacobian matrices; Switches; Telecommunications; WDM networks; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
