Title :
A low-voltage 8×8 Ti:LiNbO3 switch with a dilated-Benes architecture
Author :
Watson, James E. ; Milbrodt, Michele A. ; Bahadori, K. ; Dautartas, Mino F. ; Kemmerer, C.T. ; Moser, D.T. ; Schelling, Arthur W. ; Murphy, Timothy O. ; Veselka, John J. ; Herr, Douglas A.
Author_Institution :
AT&T Bell Lab. Breinigsville, PA, USA
fDate :
5/1/1990 12:00:00 AM
Abstract :
An 8×8 switch array with a dilated-Benes architecture that greatly relaxes the crosspoint extinction ratio requirements needed to achieve low overall switch array crosstalk is discussed. This, combined with the low uniform switching voltages (9.2+0.2 V) of the 48 directional coupler crosspoints, facilitates high-speed low-crosstalk operation. The crosspoints can be switched in about 1 ns. The switch array is fully packaged with permanently attached single-mode fiber pigtails. The high data transfer rate inherent in lithium niobate switches in general, combined with the low crosstalk and high switching speed of this switch array, is a good match to the requirements of time-multiplexing switching
Keywords :
crosstalk; high-speed optical techniques; lithium compounds; optical switches; time division multiplexing; titanium; 1 ns; 8×8 switch array; LiNbO3:Ti switch; crosspoint extinction ratio; data transfer rate; dilated-Benes architecture; directional coupler crosspoints; high-speed; low overall switch array crosstalk; low uniform switching voltages; low voltage 8×8 switches; single-mode fiber pigtails; time-multiplexing switching; Crosstalk; Directional couplers; Driver circuits; Extinction ratio; Lithium niobate; Low voltage; Optical fiber couplers; Packaging; Switches; Switching circuits;
Journal_Title :
Lightwave Technology, Journal of
