Title :
Simultaneous and independent switching of 8-wavelength channels with 2-nm spacing using a wavelength-dilated acoustooptic switch
Author :
Jackel, Janet Lehr ; Goodman, Matthew S. ; Gamelin, John ; Tomlinson, W.J. ; Baran, Jane ; Brackett, C.A. ; Fritz, Daniel J. ; Hobbs, Robert ; Kissa, Karl ; Ade, Robert ; Smith, David A.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
We have used a wavelength-dilated acoustooptic cross-connect, for independent routing of 8-wavelength channels separated by 2 nm. The individual acoustooptic switches making up this cross-connect provide low-crosstalk switching only for channel spacings of at least 4 nm. Total loss through the dilated 2/spl times/2 crossconnect is 9 dB, and crosstalk ranges from -25 to -35 dB. Switch architectures of this kind will be needed in multiwavelength networks where channel spacings are too close to be accommodated by a single multiwavelength switch.
Keywords :
acousto-optical switches; optical crosstalk; optical interconnections; optical losses; wavelength division multiplexing; 8-wavelength channel; 9 dB; acoustooptic switches; channel spacings; cross; cross-connect; dilated 2/spl times/2 crossconnect; independent routing; independent switching; low-crosstalk switching; multiwavelength networks; nm spacing; simultaneous switching; single multiwavelength switch; switch architectures; total loss; wavelength-dilated acoustooptic cross-connect; wavelength-dilated acoustooptic switch; Acoustooptic devices; Channel spacing; Crosstalk; Degradation; Nearest neighbor searches; Passband; Senior members; Switches; Testing; Wavelength routing;
Journal_Title :
Photonics Technology Letters, IEEE
